The Washer,flat, cataloged under National Stock Number 5310-00-781-9862, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Elc Industries Corp. Dba Aurora Defense Group Div Aurora Defense Group. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5310-00-781-9862 |
| Primary Part Number | 8386476 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Elc Industries Corp. Dba Aurora Defense Group Div Aurora Defense Group |
| Status | CANCELLED |
| Overall Diameter | 0.430 INCHES NOMINAL IN |
| Hardness Rating | 88.0 ROCKWELL M MINIMUM AND 117.0 ROCKWELL M MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Minimum Tensile Strength | 10400 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.240 INCHES NOMINAL IN |
| Thickness | 0.050 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 8386476 PRIMARY | Elc Industries Corp. Dba Aurora Defense Group Div Aurora Defense Group (USA) |
| 8386476 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 5310007819862 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5310-00-781-9862 is a Washer,flat, manufactured by Elc Industries Corp. Dba Aurora Defense Group Div Aurora Defense Group, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-781-9862 has 2 manufacturer part numbers on file: 8386476 (Elc Industries Corp. Dba Aurora Defense Group Div Aurora Defense Group), 8386476 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 3130-01-450-0548. Verify interchangeability with system specifications before substitution.
Key specifications for 8386476: Overall Diameter: 0.430 INCHES NOMINAL IN; Hardness Rating: 88.0 ROCKWELL M MINIMUM AND 117.0 ROCKWELL M MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Minimum Tensile Strength: 10400 POUNDS PER SQUARE INCH LBS. 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.
NSN 5310-00-781-9862 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.