The Washer,flat, cataloged under National Stock Number 5310-00-931-0080, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is J. T. D. Stamping Co 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-931-0080 |
| Primary Part Number | 12B8950-7 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | J. T. D. Stamping Co Inc |
| Status | ACTIVE |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-362 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.202 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN |
| Thickness | 0.080 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 |
|---|---|
| 12B8950-7 | J. T. D. Stamping Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 12B8950-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-931-0080 is a Washer,flat, manufactured by J. T. D. Stamping Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-931-0080 has 1 manufacturer part number on file: 12B8950-7 (J. T. D. Stamping Co Inc).
Key specifications for 12B8950-7: Overall Diameter: 0.875 INCHES NOMINAL IN; Material Document and Classification: QQ-A-362 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; 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.