The Washer,flat, cataloged under National Stock Number 5310-01-686-5343, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Raytheon Company Div Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-686-5343 |
| Primary Part Number | G761262-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Raytheon Company Div Corp |
| Status | ACTIVE |
| Overall Diameter | 0.53 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN |
| Hardness Rating | 60.0 DUROMETER NOMINAL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.27 INCHES MINIMUM AND 0.28 INCHES MAXIMUM IN |
| Thickness | 0.03 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 |
|---|---|
| G761262-1 PRIMARY | Raytheon Company Div Corp (USA) |
| Reference | Meaning |
|---|---|
| G761262 | D/9 Drawing number reference only Raytheon Company Div Corp |
NSN 5310-01-686-5343 is a Washer,flat, manufactured by Raytheon Company Div Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-686-5343 has 1 manufacturer part number on file: G761262-1 (Raytheon Company Div Corp).
Key specifications for G761262-1: Overall Diameter: 0.53 INCHES MINIMUM AND 0.56 INCHES MAXIMUM IN; Hardness Rating: 60.0 DUROMETER NOMINAL; Cross-Sectional Shape Style: RECTANGULAR; Special Features: MATERIAL EPDM ETHYLENE-PROPYLENE RUBBER. 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.