The Washer,flat, cataloged under National Stock Number 5310-00-366-2950, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-366-2950 |
| Primary Part Number | 8081368 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc |
| Status | ACTIVE |
| Overall Diameter | 2.188 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.031 INCHES NOMINAL IN |
| Thickness | 0.187 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 |
|---|---|
| 8081368 PRIMARY | Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc (USA) |
| Reference | Meaning |
|---|---|
| 8081368 | 5/9 Secondary reference General Motors Corp |
NSN 5310-00-366-2950 is a Washer,flat, manufactured by Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-366-2950 has 1 manufacturer part number on file: 8081368 (Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc).
Key specifications for 8081368: Overall Diameter: 2.188 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Special Features: 0.010 IN. BY 45 DEG CHAMFERED LEFT AND RIGHT SIDE OF BEARING SURFACE IN; Peripheral Shape Style: ROUND. 7 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.