Standoffs & Spacers – Mouser Canada

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Round Clear Hole Spacers

Keystone Electronics Round Clear Hole Spacers are available in four types of material with clearance holes for #4, #6, #8, and #10 screw sizes. The aluminum spacers feature a clear Iridite finish per MIL-C-5541 standards, while the brass spacers have a nickel finish per QQ-N-290 requirements. The insulated types include nylon 6/6 spacers in a natural color and phenolic spacers manufactured from a natural color PBE-grade material. Keystone Electronics Round Clear Hole Spacers have an outer diameter of 0.250" or 0.312" and an overall length of 0.125" to 2" with threaded or unthreaded options.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Length	Material	Outside Diameter	Plating	Gender	Packaging
Standoffs & Spacers RD ALUM 4 X .125" 2036 Keystone Electronics 1: $0.403 31,421In Stock	Mfr. Part # 2036 Mouser Part # 534-2036	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	31,421In Stock	$0.403 $0.33 $0.295 $0.248 View $0.215 $0.178 $0.161 $0.157	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .125" 3403 Keystone Electronics 1: $0.481 9,542In Stock	Mfr. Part # 3403 Mouser Part # 534-3403	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	9,542In Stock	$0.481 $0.381 $0.341 $0.288 View $0.239 $0.209 $0.191	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 1/8" NYLON SPACER 875 Keystone Electronics 1: $0.434 107,206In Stock 14,400On Order	Mfr. Part # 875 Mouser Part # 534-875	Keystone Electronics	Standoffs & Spacers 1/8" NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	107,206In Stock 14,400On Order	$0.434 $0.426	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers NYLON SPACER 884 Keystone Electronics 1: $0.403 24,110In Stock	Mfr. Part # 884 Mouser Part # 534-884	Keystone Electronics	Standoffs & Spacers NYLON SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	24,110In Stock	$0.403 $0.326 $0.288 $0.245 View $0.239 $0.205 $0.178 $0.166 $0.152	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Nylon	0.25 in		Female / Female	Bulk
Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 1454B Keystone Electronics 1: $1.83 400In Stock	Mfr. Part # 1454B Mouser Part # 534-1454B	Keystone Electronics	Standoffs & Spacers .375 Rd Clr hle spcr .250 OD #4 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	$1.83 $1.39 $1.29 $1.28 View $1.17 $0.835 $0.758 $0.744	Min.: 1 Mult.: 1	Spacers	Round	9.52 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X1/4"SPACER RND 1457A Keystone Electronics 1: $1.01 160In Stock 500Expected 2026-12-28	Mfr. Part # 1457A Mouser Part # 534-1457A	Keystone Electronics	Standoffs & Spacers 1/4"X1/4"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	160In Stock 500Expected 2026-12-28	$1.01 $0.769 $0.756 $0.445 View $0.414 $0.381	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1457B Keystone Electronics 1: $1.12 5,064In Stock	Mfr. Part # 1457B Mouser Part # 534-1457B	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	5,064In Stock	$1.12 $0.846 $0.806 $0.76 View $0.758 $0.687 $0.491 $0.45 $0.422	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .750" RND SPACER 1457D Keystone Electronics 1: $2.34 420In Stock	Mfr. Part # 1457D Mouser Part # 534-1457D	Keystone Electronics	Standoffs & Spacers .750" RND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	420In Stock	$2.34 $1.80 $1.71 $1.67 View $1.60 $1.55 $1.07 $0.977	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers 1/4"X3/8"SPACER RND 1481 Keystone Electronics 1: $1.09 98In Stock	Mfr. Part # 1481 Mouser Part # 534-1481	Keystone Electronics	Standoffs & Spacers 1/4"X3/8"SPACER RND Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	98In Stock	$1.09 $0.831 $0.755 $0.64 View $0.532 $0.493 $0.446 $0.431	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Brass	0.25 in	Nickel	Female / Female	Bulk
Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass 1482 Keystone Electronics 1: $1.27 2,003In Stock	Mfr. Part # 1482 Mouser Part # 534-1482	Keystone Electronics	Standoffs & Spacers .500 Rd Clr hle spcr .250 OD #8 Brass Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	2,003In Stock	$1.27 $0.981 $0.888 $0.753 View $0.626 $0.569 $0.525 $0.512	Min.: 1 Mult.: 1	Spacers	Round	12.7 mm	Brass	6.35 mm	Nickel	Female / Female	Bulk
Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 1662 Keystone Electronics 1: $3.52 94In Stock	Mfr. Part # 1662 Mouser Part # 534-1662	Keystone Electronics	Standoffs & Spacers .250 Rd Clr hle spcr .312 OD #10 Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	94In Stock	$3.52 $3.35 $2.77 $2.39 View $1.54 $1.40 $1.35	Min.: 1 Mult.: 1	Spacers	Round	6.35 mm	Brass	7.92 mm	Nickel	Female	Bulk
Standoffs & Spacers RD ALUM 4 X .875" 3402 Keystone Electronics 1: $1.10 976In Stock	Mfr. Part # 3402 Mouser Part # 534-3402	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .875" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	976In Stock	$1.10 $0.843 $0.767 $0.651 View $0.541 $0.482 $0.448 $0.422	Min.: 1 Mult.: 1	Spacers	Round	0.875 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .625" 3429 Keystone Electronics 1: $0.899 50In Stock	Mfr. Part # 3429 Mouser Part # 534-3429	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .625" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	50In Stock	$0.899 $0.696 $0.623 $0.527 View $0.439 $0.405 $0.367 $0.341	Min.: 1 Mult.: 1	Spacers	Round	0.625 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .250" 3457 Keystone Electronics 1: $0.465 8,774In Stock	Mfr. Part # 3457 Mouser Part # 534-3457	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .250" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	8,774In Stock	$0.465 $0.389 $0.347 $0.302 View $0.301 $0.267 $0.233 $0.215 $0.211	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers .250 X .375 #4 ROUND SPACER 3458 Keystone Electronics 1: $0.76 889In Stock 1,000Expected 2026-10-14	Mfr. Part # 3458 Mouser Part # 534-3458	Keystone Electronics	Standoffs & Spacers .250 X .375 #4 ROUND SPACER Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	889In Stock 1,000Expected 2026-10-14	$0.76 $0.589 $0.527 $0.446 View $0.37 $0.338 $0.308 $0.287	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 4 X .500" 3459 Keystone Electronics 1: $0.837 2,047In Stock	Mfr. Part # 3459 Mouser Part # 534-3459	Keystone Electronics	Standoffs & Spacers RD ALUM 4 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	2,047In Stock	$0.837 $0.637 $0.569 $0.482 View $0.40 $0.367 $0.335 $0.312	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RND ALUM #6 X .25" 3464 Keystone Electronics 1: $0.512 429In Stock 6,800Expected 2026-10-23	Mfr. Part # 3464 Mouser Part # 534-3464	Keystone Electronics	Standoffs & Spacers RND ALUM #6 X .25" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	429In Stock 6,800Expected 2026-10-23	$0.512 $0.439 $0.405 $0.347 View $0.288 $0.267 $0.24 $0.226	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .375" 3465 Keystone Electronics 1: $0.775 3,612In Stock	Mfr. Part # 3465 Mouser Part # 534-3465	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	3,612In Stock	$0.775 $0.589 $0.527 $0.446 View $0.37 $0.343 $0.308 $0.287	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 6 X .750" 3467 Keystone Electronics 1: $0.992 1,019In Stock	Mfr. Part # 3467 Mouser Part # 534-3467	Keystone Electronics	Standoffs & Spacers RD ALUM 6 X .750" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,019In Stock	$0.992 $0.755 $0.691 $0.586 View $0.487 $0.429 $0.408 $0.378	Min.: 1 Mult.: 1	Spacers	Round	0.75 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .250" 3471 Keystone Electronics 1: $0.636 4,047In Stock	Mfr. Part # 3471 Mouser Part # 534-3471	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .250" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	4,047In Stock	$0.636 $0.504 $0.451 $0.381 View $0.316 $0.288 $0.259 $0.245	Min.: 1 Mult.: 1	Spacers	Round	0.25 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .375" 3472 Keystone Electronics 1: $0.744 400In Stock	Mfr. Part # 3472 Mouser Part # 534-3472	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .375" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	400In Stock	$0.744 $0.589 $0.527 $0.446 View $0.37 $0.338 $0.308 $0.287	Min.: 1 Mult.: 1	Spacers	Round	0.375 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .500" 3473 Keystone Electronics 1: $0.682 1,064In Stock	Mfr. Part # 3473 Mouser Part # 534-3473	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .500" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,064In Stock	$0.682 $0.508 $0.454 $0.384 View $0.326 $0.31 $0.268	Min.: 1 Mult.: 1	Spacers	Round	0.5 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum 3477 Keystone Electronics 1: $3.15 644In Stock	Mfr. Part # 3477 Mouser Part # 534-3477	Keystone Electronics	Standoffs & Spacers 2.00 Rd Clr hle spcr 250 OD #8 Alum Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	644In Stock	$3.15 $2.45 $2.19 $1.94 View $1.47 $1.35	Min.: 1 Mult.: 1	Spacers	Round	50.8 mm	Aluminum	6.35 mm	Iridite	Female / Female	Bulk
Standoffs & Spacers RD ALUM 8 X .125" 4258 Keystone Electronics 1: $0.574 1,010In Stock	Mfr. Part # 4258 Mouser Part # 534-4258	Keystone Electronics	Standoffs & Spacers RD ALUM 8 X .125" Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,010In Stock	$0.574 $0.437 $0.391 $0.33 View $0.274 $0.251 $0.228 $0.212	Min.: 1 Mult.: 1	Spacers	Round	0.125 in	Aluminum	0.25 in	Iridite	Female / Female	Bulk
Standoffs & Spacers SPACER Replaced NC1115910A 4263 Keystone Electronics 1: $1.19 1,698In Stock	Mfr. Part # 4263 Mouser Part # 534-4263	Keystone Electronics	Standoffs & Spacers SPACER Replaced NC1115910A Learn More about Keystone Electronics keystone round clear hole spacers	Datasheet	1,698In Stock	$1.19 $0.911 $0.831 $0.705 View $0.589 $0.491 $0.465	Min.: 1 Mult.: 1	Spacers	Round	12.7 mm	Aluminum	7.92 mm	Iridite	Female / Female	Bulk