The Washer,flat, cataloged under National Stock Number 5310-01-313-4315, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-313-4315 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Overall Diameter | 0.985 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | MIL-C-24252 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material | COBALT ALLOY OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Thickness | 0.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 8913C10A | 5/1 Secondary reference Ashcroft Inc Dba Heise |
| 8910W-1/2-738PC22 | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
| 8910W-1/2-738PC22 | 3/1 Design control — primary reference Ashcroft Inc Dba Heise |
| 8913C10A | 5/9 Secondary reference Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse |
NSN 5310-01-313-4315 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-313-4315: Overall Diameter: 0.985 INCHES MINIMUM AND 0.990 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Material Document and Classification: MIL-C-24252 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Material: COBALT ALLOY OVERALL. 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.
NSN 5310-01-313-4315 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.