NAAMS Spacers
NAAMS spacers are a great and cost-effective way to fill gaps or make adjustments to your automation processes. Use spacers to quickly extend clearance spaces to reach your desired setup locations. Spacer thickness ranges from 3mm to 7mm with different hole configurations. We offer all current and discontinued NAAMS codes which are manufactured out of S.A.E. 1020 hot rolled steel with a black oxide finish or call in for a stainless steel option. Our capabilities are able to match any desired specifications. For custom orders, call 586-463-3200 or email Sales@freertool.com.
*Volume discounts* - Contact us
Order 500 or more NAAMS Standards spacers or over 100 specialty NAAMS spacers and receive unlisted discounted pricing. Stock up today!
We have specialty NAAMS spacers in various thickness from .20 mm to 2.00 mm in 3-hole, 4-hole, 5-hole, and 6-hole configurations. If you do not see the one you are looking for, contact us and we will get them for you.
| NAAMS Part Number | Hole-Pattern | Width | Thickness (mm) | NAAMS Part Number | Hole-Pattern | Width | Thickness (mm) | NAAMS Part Number | Hole-Pattern | Width | Thickness (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ASP302 | 3 | 25 | 0.2 | ASP431 | 4 | 25 | 3.1 | ASP437N | 4 | 20 | 3.7 |
| ASP302N | 3 | 20 | 0.2 | ASP433 | 4 | 25 | 3.3 | ASP437S | 4 | 20 | 3.7 |
| ASP303 | 3 | 25 | 0.3 | ASP435 | 4 | 25 | 3.5 | ASP439N | 4 | 20 | 3.9 |
| ASP303N | 3 | 20 | 0.3 | ASP437 | 4 | 25 | 3.7 | ASP439S | 4 | 20 | 3.9 |
| ASP304 | 3 | 25 | 0.4 | ASP439 | 4 | 25 | 3.9 | ASP441N | 4 | 20 | 4.1 |
| ASP304N | 3 | 20 | 0.4 | ASP441 | 4 | 25 | 4.1 | ASP441S | 4 | 20 | 4.1 |
| ASP305 | 3 | 25 | 0.5 | ASP443 | 4 | 25 | 4.3 | ASP443N | 4 | 20 | 4.3 |
| ASP305N | 3 | 20 | 0.5 | ASP445 | 4 | 25 | 4.5 | ASP443S | 4 | 20 | 4.3 |
| ASP306 | 3 | 25 | 0.6 | ASP447 | 4 | 25 | 4.7 | ASP445N | 4 | 20 | 4.5 |
| ASP306N | 3 | 20 | 0.6 | ASP449 | 4 | 25 | 4.9 | ASP445S | 4 | 20 | 4.5 |
| ASP308 | 3 | 25 | 0.8 | ASP451 | 4 | 25 | 5.1 | ASP447N | 4 | 20 | 4.7 |
| ASP308N | 3 | 20 | 0.8 | ASP453 | 4 | 25 | 5.3 | ASP447S | 4 | 20 | 4.7 |
| ASP310 | 3 | 25 | 1 | ASP455 | 4 | 25 | 5.5 | ASP449N | 4 | 20 | 4.9 |
| ASP310N | 3 | 20 | 1 | ASP457 | 4 | 25 | 5.7 | ASP449S | 4 | 20 | 4.9 |
| ASP318 | 3 | 25 | 1.8 | ASP459 | 4 | 25 | 5.9 | ASP451N | 4 | 20 | 5.1 |
| ASP320 | 3 | 25 | 2 | ASP461 | 4 | 25 | 6.1 | ASP451S | 4 | 20 | 5.1 |
| ASP320N | 3 | 20 | 2 | ASP463 | 4 | 25 | 6.3 | ASP453N | 4 | 20 | 5.3 |
| ASP322 | 3 | 25 | 2.2 | ASP465 | 4 | 25 | 6.5 | ASP453S | 4 | 20 | 5.3 |
| ASP325 | 3 | 25 | 2.5 | ASP467 | 4 | 25 | 6.7 | ASP455N | 4 | 20 | 5.5 |
| ASP326 | 3 | 25 | 2.6 | ASP469 | 4 | 25 | 6.9 | ASP455S | 4 | 20 | 5.5 |
| ASP328 | 3 | 25 | 2.8 | ASP471 | 4 | 25 | 7.1 | ASP457N | 4 | 20 | 5.7 |
| ASP331 | 3 | 25 | 3.1 | ASP402N | 4 | 20 | 0.2 | ASP457S | 4 | 20 | 5.7 |
| ASP333 | 3 | 25 | 3.3 | ASP402S | 4 | 20 | 0.2 | ASP459N | 4 | 20 | 5.9 |
| ASP335 | 3 | 25 | 3.5 | ASP403N | 4 | 20 | 0.3 | ASP459S | 4 | 20 | 5.9 |
| ASP337 | 3 | 25 | 3.7 | ASP405N | 4 | 20 | 0.5 | ASP461N | 4 | 20 | 6.1 |
| ASP339 | 3 | 25 | 3.9 | ASP405S | 4 | 20 | 0.5 | ASP461S | 4 | 20 | 6.1 |
| ASP341 | 3 | 25 | 4.1 | ASP406N | 4 | 20 | 0.6 | ASP463N | 4 | 20 | 6.3 |
| ASP343 | 3 | 25 | 4.3 | ASP408N | 4 | 20 | 0.8 | ASP463S | 4 | 20 | 6.3 |
| ASP345 | 3 | 25 | 4.5 | ASP410N | 4 | 20 | 1 | ASP465N | 4 | 20 | 6.5 |
| ASP347 | 3 | 25 | 4.7 | ASP410S | 4 | 20 | 1 | ASP465S | 4 | 20 | 6.5 |
| ASP349 | 3 | 25 | 4.9 | ASP420 | 4 | 25 | 2 | ASP467N | 4 | 20 | 6.7 |
| ASP351 | 3 | 25 | 5.1 | ASP420N | 4 | 20 | 2 | ASP467S | 4 | 20 | 6.7 |
| ASP353 | 3 | 25 | 5.3 | ASP420S | 4 | 20 | 2 | ASP469N | 4 | 20 | 6.9 |
| ASP355 | 3 | 25 | 5.5 | ASP422 | 4 | 25 | 2.2 | ASP469S | 4 | 20 | 6.9 |
| ASP357 | 3 | 25 | 5.7 | ASP424 | 4 | 25 | 2.4 | ASP602N | 6 | 20 | 0.2 |
| ASP359 | 3 | 25 | 5.9 | ASP426 | 4 | 25 | 2.6 | ASP605N | 6 | 20 | 0.5 |
| ASP361 | 3 | 25 | 6.1 | ASP431N | 4 | 20 | 3.1 | ASP610N | 6 | 20 | 1 |
| ASP363 | 3 | 25 | 6.3 | ASP431S | 4 | 20 | 3.1 | ASP620N | 6 | 20 | 2 |
| ASP365 | 3 | 25 | 6.5 | ASP433N | 4 | 20 | 3.3 | ||||
| ASP367 | 3 | 25 | 6.7 | ASP433S | 4 | 20 | 3.3 | ||||
| ASP369 | 3 | 25 | 6.9 | ASP435N | 4 | 20 | 3.5 | ||||
| ASP371 | 3 | 25 | 7.1 | ASP435S | 4 | 20 | 3.5 |
Types of NAAMS Spacers

2-Hole Spacers
NAAMS shims in the 200 series are 60mm by 50mm ±1.0 with two Ø 10.5mm holes +0.3 -0.0 tolerances set 30mm apart. The thickness is specified by the specific NAAMS code.
3-Hole Spacers
NAAMS spacers in the 300 series are 46mm by 25mm ±0.5 with three Ø 10.5mm holes +0.3 -0.0 tolerances set 15mm apart. These are offered with a slotted design and narrow design as well. The narrow digns have the same configurations as regular the regular ASP300 series but with a 20mm width. S-slotted series have a 20mm width ±1.0 with a 9.0mm by 20mm slot. The thickness is specified by the specific NAAMS code.
4-Hole Spacers
NAAMS spacers in the 400 series are 61mm by 25mm ±0.5 with four Ø 10.5mm holes +0.3 -0.0 tolerances set 15mm apart. These are offered in an S-slotted series as well with a 9mm by 30mm slot that comes with a 20mm ±1.0 width. The thickness is specified by the specific NAAMS code.
5-Hole Spacers
NAAMS spacers in the 500 series are 76mm by 25mm ±0.5 with five Ø 10.5mm holes +0.3 -0.0 tolerances set 15mm apart. The thickness is specified by the specific NAAMS code.
6-Hole Spacers
NAAMS spacers in the 600 series are 50 mm by 63mm ±1.0 with 6 Ø 10.5mm holes +0.3 -0.0 tolerances set 15mm with three holes 15mm apart and three holes parallel 45mm ±0.2 on the opposite side. These S series spacers are offered with a double slot design. Slots are 9mm by 20mm set 40mm apart and come with a 36mm width. The thickness is specified by the specific NAAMS code.

3-Slot Spacers
NAAMS 3-slot construction spacers are slotted spacers with dimensions of 110mm by 40mm. The three slots are 35mm apart Ø 10.50mm ±0.20. Thickness is specified by the specific corresponding NAAMS code.

Spacer for 60 x 60 and 70 x 70 Mounting
NAAMS spacers in the ACS600 series are construction spacers with an 8-hole design. Dimensions are 100mm by 100mm with hole configurations of four Ø 10.5mm ±0.20 and four Ø 19.0mm ±0.20. The thickness of spacers is specified by the corresponding NAAMS codes.

Spacer for Shock Bracket
NAAMS Spacers in the 700 series are meant for shock brackets. They come with a 5 hole design with dimensions of 76mm by 57mm. The hole configurations include a single 42mm drill through hole with 4 surrounding 9.0 mm thru holes. The thickness is specified by the corresponding NAAMS code.
All tolerances are set to ±0.5 for 0 places, ±0.3 for 1 places, and ±0.03 for 2 places.
| NAAMS Spacers Complete Catalog Breakdown | ||
|---|---|---|
| Catalog Page | NAAMS CODE | DESCRIPTION |
| J-1 | Shims and Spacers Components Index | |
| J-4 | ASP330-ASP370 | Metric Fitting Spacers 3-Hole |
| J-5 | ASP430-ASP470 | Metric Fitting Spacers 4-Hole |
| J-6 | ASP630-ASP670 | Metric Fitting Spacers 6-Hole |
| J-7 | ASP330S-ASP370S | Metric Fitting Spacers Short Hole (Small) |
| J-9 | ASP630S-ASP670S | Metric Fitting Spacers 2-Hole (Small) |
| J-10 | ACS330S-ACS370S | Construction Spacer 3-Hole |
| J-11 | ACS630-ACS670 | Spacer for 60 x 60 and 70 x 70 Mounting |
| J-14 | ASP530-ASP570 | Metric Fitting Spacers 5-Hole |
| J-19 | ASP430S-ASP470S | Metric Fitting Spacers For 3-Hole (20 mm)* |
| J-20 | ASP430N-ASP470N | Metric Fitting Spacers 4-Hole (20 mm) |
| J-21 | ASP630N-ASP670N | Metric Fitting Spacers 6-Hole (20 mm) |
| J-22 | ASP230-ASP270 | Metric Fitting Spacers 2-Hole |
| J-23 | ASP730-ASP770 | Spacer for Shock Bracket 4-Hole |
NAAMS Spacer ASP650S DSCP017-M500
SKU: FN-ASP650S
MPN: ASP650S
NAAMS Spacer ASP652 DSCP053-M520
SKU: FN-ASP652
MPN: ASP652, FSD 41296-62, SP3-52, 41-502-2253, 56ZF28066-112, DSCP053-M520
NAAMS Spacer ASP652N DSCP038-M520
SKU: FN-ASP652N
MPN: ASP652N, DSCP038-M520
NAAMS Spacer ASP652S
SKU: FN-ASP652S
MPN: ASP652S
NAAMS Spacer ASP654 DSCP053-M540
SKU: FN-ASP654
MPN: ASP654, FSD 41296-63, SP3-54, 41-502-2254, 56ZF28066-113, DSCP053-M540
NAAMS Spacer ASP654N DSCP038-M540
SKU: FN-ASP654N
MPN: ASP654N, DSCP038-M540
NAAMS Spacer ASP654S
SKU: FN-ASP654S
MPN: ASP654S
NAAMS Spacer ASP656 DSCP053-M560
SKU: FN-ASP656
MPN: ASP656, FSD 41296-64, SP3-56, 41-502-2255, 56ZF28066-114, DSCP053-M560
NAAMS Spacer ASP656N DSCP038-M560
SKU: FN-ASP656N
MPN: ASP656N, DSCP038-M560
NAAMS Spacer ASP656S
SKU: FN-ASP656S
MPN: ASP656S
NAAMS Spacer ASP658 DSCP053-M580
SKU: FN-ASP658
MPN: ASP658, FSD 41296-65, SP3-58, 41-502-2256, 56ZF28066-115, DSCP053-M580
NAAMS Spacer ASP658N DSCP038-M580
SKU: FN-ASP658N
MPN: ASP658N, DSCP038-M580
NAAMS Spacer ASP658S
SKU: FN-ASP658S
MPN: ASP658S
NAAMS Spacer ASP660 DSCP053-M600
SKU: FN-ASP660
MPN: ASP660, FSD 41296-66, SP3-60, 41-502-2257, 56ZF28066-116, DSCP053-M600
NAAMS Spacer ASP660N DSCP038-M600
SKU: FN-ASP660N
MPN: ASP660N, DSCP038-M600
NAAMS Spacer ASP660S
SKU: FN-ASP660S
MPN: ASP660S
NAAMS Spacer ASP662 DSCP053-M620
SKU: FN-ASP662
MPN: ASP662, FSD 41296-67, SP3-62, 41-502-2258, 56ZF28066-117, DSCP053-M620
NAAMS Spacer ASP662N DSCP038-M620
SKU: FN-ASP662N
MPN: ASP662N, DSCP038-M620
NAAMS Spacer ASP662S
SKU: FN-ASP662S
MPN: ASP662S
NAAMS Spacer ASP664 DSCP053-M640
SKU: FN-ASP664
MPN: ASP664, FSD 41296-68, SP3-64, 41-502-2259, 56ZF28066-118, DSCP053-M640
NAAMS Spacer ASP664N
SKU: FN-ASP664N
MPN: ASP664N
NAAMS Spacer ASP664S
SKU: FN-ASP664S
MPN: ASP664S
NAAMS Spacer ASP666 DSCP053-M660
SKU: FN-ASP666
MPN: ASP666, FSD 41296-69, SP3-66, 41-502-2260, 56ZF28066-119, DSCP053-M660
NAAMS Spacer ASP666N
SKU: FN-ASP666N
MPN: ASP666N