The Washer,flat, cataloged under National Stock Number 5310-01-414-2958, 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 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-414-2958 |
| Primary Part Number | 803-6397434-X11XXX ITEM 19 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 0.336 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-C-24252, COMP 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COBALT COMP L-605 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.157 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Thickness | 0.068 INCHES NOMINAL 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 |
|---|---|
| 803-6397434-X11XXX ITEM 19 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-6397434-X11XXX-019 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5310-01-414-2958 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-414-2958 has 1 manufacturer part number on file: 803-6397434-X11XXX ITEM 19 (Naval Sea Systems Command).
Key specifications for 803-6397434-X11XXX ITEM 19: Overall Diameter: 0.336 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN; Material Document and Classification: MIL-C-24252, COMP 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: OUTSIDE LEFT CORNER CHAMFERED TO 45 DEGREES TO A LENGTH OF 0.008. 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.