washers › flat washers
AN960C616
Stainless Steel Washer
Description
AN960 flat washers are used under hex nuts to provide a smooth bearing surface, as shims to obtain the correct grip length for a bolt and nut assembly, and to adjust the position of AN310 and AN320 castle nuts with respect to drilled cotter pin holes in bolts and clevis pins. Available in regular and light thickness. Light Series Washers: Add the letter "L" to dash number to indicate light series. AN960C-416L is a light series cadmium plated stainless steel washer for 1/4" dia. bolt. Light series washers must be manually input on order form. Less 20% for quantity 100/Part No
Specifications
| Alternate Part Number | NAS1149C0663R AN960C616 |
|---|---|
| Bolt or Screw Size | 3/8 |
| Hole Diameter | Between 0.380 inches and 0.400 inches |
| I.D. (in.) | .390 |
| Material | CRES |
| Material Specification | Mil-s-5059 military specification 1st material response and mil-s-6721 military specification 2nd material response and mil-s-6721 military specification 3rd material response and mil-s-6721 military specification 4th material response |
| NIIN | 00-167-0804 |
| NSN | 5310-00-167-0804 |
| Nondefinitive Specification/Std Data | A type and 2 grade and b class |
| O.D. (in.) | .625 |
| Overall Diameter | Between 0.620 inches and 0.645 inches |
| Superseding NAS No. | NAS1149CO663R |
| Surface Treatment | Passivate |
| Thickness | .063, Between 0.053 inches and 0.073 inches |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AN960C616 — functionally equivalent.
- NAS1149C0663R Same NSN 3/8 · 21/32 in · CRES
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- NAS1149B0663H NAS 3/8 · 21/32 in · Copper
- NAS1149E0663R NAS 3/8 · 21/32 in · Iron
- NAS1149F0663B NAS 3/8 · 21/32 in · Steel
- NAS1149F0663P NAS 3/8 · 21/32 in · Steel
- AN960-616 AN 3/8 · 21/32 in · Steel
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Catalog data updated 2026-07-05. Report a data error