The Washer,flat, cataloged under National Stock Number 5310-00-094-8288, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Mission Systems Orchard Park Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-094-8288 |
| Primary Part Number | 0-521-343 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Overall Diameter | 0.373 INCHES NOMINAL IN |
| Hardness Rating | 60.0 DUROMETER MINIMUM AND 85.0 DUROMETER MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.187 INCHES NOMINAL IN |
| Thickness | 0.065 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 |
|---|---|
| 0-521-343 PRIMARY | Mission Systems Orchard Park Inc (USA) |
| Reference | Meaning |
|---|---|
| 0-521-343 | 5/9 Secondary reference Ingersoll-Rand Company Dba Ingersoll-Rand |
NSN 5310-00-094-8288 is a Washer,flat, manufactured by Mission Systems Orchard Park Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-094-8288 has 1 manufacturer part number on file: 0-521-343 (Mission Systems Orchard Park Inc).
Key specifications for 0-521-343: Overall Diameter: 0.373 INCHES NOMINAL IN; Hardness Rating: 60.0 DUROMETER MINIMUM AND 85.0 DUROMETER MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 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.