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 DSCP036-M380
SKU: FN-DSCP036-M380
MPN: DSCP036-M380, ASP338N
NAAMS Spacer DSCP036-M400
SKU: FN-DSCP036-M400
MPN: DSCP036-M400, ASP340N
NAAMS Spacer DSCP036-M420
SKU: FN-DSCP036-M420
MPN: DSCP036-M420, ASP342N
NAAMS Spacer DSCP036-M440
SKU: FN-DSCP036-M440
MPN: DSCP036-M440, ASP344N
NAAMS Spacer DSCP036-M460
SKU: FN-DSCP036-M460
MPN: DSCP036-M460, ASP346N
NAAMS Spacer DSCP036-M480
SKU: FN-DSCP036-M480
MPN: DSCP036-M480, ASP348N
NAAMS Spacer DSCP036-M500
SKU: FN-DSCP036-M500
MPN: DSCP036-M500, ASP350N
NAAMS Spacer DSCP036-M520
SKU: FN-DSCP036-M520
MPN: DSCP036-M520, ASP352N
NAAMS Spacer DSCP036-M540
SKU: FN-DSCP036-M540
MPN: DSCP036-M540, ASP354N
NAAMS Spacer DSCP036-M560
SKU: FN-DSCP036-M560
MPN: DSCP036-M560, ASP356N
NAAMS Spacer DSCP036-M580
SKU: FN-DSCP036-M580
MPN: DSCP036-M580, ASP358N
NAAMS Spacer DSCP036-M600
SKU: FN-DSCP036-M600
MPN: DSCP036-M600, ASP360N
NAAMS Spacer DSCP036-M620
SKU: FN-DSCP036-M620
MPN: DSCP036-M620, ASP362N
NAAMS Spacer DSCP036-M640
SKU: FN-DSCP036-M640
MPN: DSCP036-M640, ASP364N
NAAMS Spacer DSCP036-M660
SKU: FN-DSCP036-M660
MPN: DSCP036-M660, ASP366N
NAAMS Spacer DSCP036-M680
SKU: FN-DSCP036-M680
MPN: DSCP036-M680, ASP368N
NAAMS Spacer DSCP036-M700
SKU: FN-DSCP036-M700
MPN: DSCP036-M700, ASP370N
NAAMS Spacer DSCP037-M025
SKU: FN-DSCP037-M025
MPN: DSCP037-M025
NAAMS Spacer DSCP037-M050
SKU: FN-DSCP037-M050
MPN: DSCP037-M050
NAAMS Spacer DSCP037-M100
SKU: FN-DSCP037-M100
MPN: DSCP037-M100
NAAMS Spacer DSCP037-M200
SKU: FN-DSCP037-M200
MPN: DSCP037-M200
NAAMS Spacer DSCP038-M025
SKU: FN-DSCP038-M025
MPN: DSCP038-M025
NAAMS Spacer DSCP038-M050
SKU: FN-DSCP038-M050
MPN: DSCP038-M050
NAAMS Spacer DSCP038-M100
SKU: FN-DSCP038-M100
MPN: DSCP038-M100