The Washer,flat, cataloged under National Stock Number 5310-00-285-8313, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-285-8313 |
| Primary Part Number | 538841 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.3725 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | COPPER ALLOY OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.250 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Thickness | 0.070 INCHES MINIMUM AND 0.085 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 |
|---|---|
| 538841 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 538841 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 5310-00-285-8313 is a Washer,flat, manufactured by Goodrich Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-285-8313 has 1 manufacturer part number on file: 538841 (Goodrich Corporation).
3 possible matches (shared part number, not a government interchangeability claim): 2840-00-911-3186, 5935-01-090-5594, 5895-01-362-6329. Verify interchangeability with system specifications before substitution.
Key specifications for 538841: Surface Treatment Document and Classification: QQ-P-416 TYPE 1 CLASS 1,2 OR 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.3725 INCHES MINIMUM AND 0.3740 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.