The Washer,flat, cataloged under National Stock Number 5310-00-853-1402, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Air Armament Center/ En. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-853-1402 |
| Primary Part Number | 68D7180-5 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Air Armament Center/ En |
| Status | ACTIVE |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/5,TEMPER T3 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 | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Thickness | 0.016 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 |
|---|---|
| 68D7180-5 | Air Armament Center/ En (USA) |
| Reference | Meaning |
|---|---|
| S124682-4D14-1 | 5/9 Secondary reference The Boeing Company |
| S124682-4D14-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-853-1402 is a Washer,flat, manufactured by Air Armament Center/ En, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-853-1402 has 1 manufacturer part number on file: 68D7180-5 (Air Armament Center/ En).
Key specifications for 68D7180-5: Overall Diameter: 0.875 INCHES NOMINAL IN; Material Document and Classification: QQ-A-250/5,TEMPER T3 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.