The Washer,shouldered, cataloged under National Stock Number 5310-01-321-9610, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-321-9610 |
| Item Name | Washer,shouldered |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Shoulder Height | 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN |
| Style Designator | SHOULDERED |
| Material Document and Classification | AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-P-24074 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN |
| Material Thickness | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.300 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Hole Diameter | 0.253 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MIL-W-45595/2 | 4/1 Identification reference U.S. Government activity |
| M45595/2-14 | 2/2 Government specification standardization U.S. Government activity |
NSN 5310-01-321-9610 is a Washer,shouldered, classified under FSC 5310, Nuts and Washers. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5310-01-332-7091, 5310-01-348-3230, 5310-01-353-3305. Verify interchangeability with system specifications before substitution.
Key specifications for 5310-01-321-9610: Shoulder Height: 0.035 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Style Designator: SHOULDERED; Material Document and Classification: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-P-24074 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.