The Washer,flat, cataloged under National Stock Number 5310-01-460-8079, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Controls Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 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 | 5310-01-460-8079 |
| Primary Part Number | 121-04-D-2 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Controls Inc |
| Status | ACTIVE |
| Overall Diameter | 0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | BLACK OVERALL |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC ACETAL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Thickness | 0.046 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 |
|---|---|
| 406888-01 | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
| 121-04-D-2 PRIMARY | Bae Systems Controls Inc (USA) |
| 406888-01 | Bae Systems Controls Inc (USA) |
NSN 5310-01-460-8079 is a Washer,flat, manufactured by Bae Systems Controls Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-460-8079 has 3 manufacturer part numbers on file: 406888-01 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation), 121-04-D-2 (Bae Systems Controls Inc), 406888-01 (Bae Systems Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-518-7401. Verify interchangeability with system specifications before substitution.
Key specifications for 121-04-D-2: Overall Diameter: 0.307 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Color: BLACK OVERALL; 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.