The Washer,flat, cataloged under National Stock Number 5310-01-547-5335, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-547-5335 |
| Primary Part Number | 90850A350 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Overall Diameter | 1.2812 INCHES MINIMUM AND 1.3437 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | YELLOW OVERALL |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.6250 INCHES MINIMUM AND 0.6719 INCHES MAXIMUM IN |
| Thickness | 0.1406 INCHES MINIMUM AND 0.1562 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 |
|---|---|
| 90850A350 PRIMARY | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| 20706261 | 5/2 Secondary reference U.S. Government activity |
| 35AX1489 | 5/9 Secondary reference U.S. Government activity |
| 10025766 | 3/9 Design control — primary reference General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp |
NSN 5310-01-547-5335 is a Washer,flat, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-547-5335 has 1 manufacturer part number on file: 90850A350 (Mcmaster-Carr Supply Co).
Key specifications for 90850A350: Overall Diameter: 1.2812 INCHES MINIMUM AND 1.3437 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Color: YELLOW OVERALL; Surface Treatment: ZINC OVERALL. 9 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.