The Washer,flat, cataloged under National Stock Number 5310-00-682-5944, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Champion Aerospace Llc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-682-5944 |
| Primary Part Number | AG2-674-1 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Champion Aerospace Llc |
| Status | ACTIVE |
| Overall Diameter | 0.618 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | COPPER OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.447 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN |
| Thickness | 0.060 INCHES MINIMUM AND 0.064 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 |
NSN 5310-00-682-5944 is a Washer,flat, manufactured by Champion Aerospace Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-682-5944 has 2 manufacturer part numbers on file: AG2-674-1 (Champion Aerospace Llc), 118273 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6640-01-129-2880. Verify interchangeability with system specifications before substitution.
Key specifications for AG2-674-1: Overall Diameter: 0.618 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: COPPER OVERALL. 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.