The Washer,recessed, cataloged under National Stock Number 5310-01-396-9670, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-396-9670 |
| Primary Part Number | 595-6401267 ITEM 134 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN |
| Material Thickness | 0.120 INCHES NOMINAL IN |
| Recess Diameter | 0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY K-500 OVERALL |
| Hole Diameter | 0.328 INCHES MINIMUM AND 0.344 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 |
| Part Number | Manufacturer |
|---|---|
| 595-6401267 ITEM 134 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211050284 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5310-01-396-9670 is a Washer,recessed, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-396-9670 has 1 manufacturer part number on file: 595-6401267 ITEM 134 (Naval Sea Systems Command).
Key specifications for 595-6401267 ITEM 134: Material Document and Classification: QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM IN; Material Thickness: 0.120 INCHES NOMINAL IN; Recess Diameter: 0.358 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN. 6 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.