The Washer,flat, cataloged under National Stock Number 5310-01-135-4162, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Airbus Operations. Government technical data includes 11 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-135-4162 |
| Primary Part Number | ASNA2397KD816L |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Airbus Operations |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-250/5 COND T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Nondefinitive Spec/std Data | A TYPE AND 2 GRADE AND D CLASS |
| Surface Treatment | ANODIZE OVERALL |
| Peripheral Shape Style | ROUND |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.525 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 |
|---|---|
| ASNA2397KD816L | Airbus Operations (FRA) |
| AN960KD816L | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| AN960KD8161 | 5/9 Secondary reference U.S. Government activity |
| AN960KD816L | 2/2 Government specification standardization U.S. Government activity |
| FF-W-92 | 4/1 Identification reference U.S. Government activity |
NSN 5310-01-135-4162 is a Washer,flat, manufactured by Airbus Operations, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-135-4162 has 2 manufacturer part numbers on file: ASNA2397KD816L (Airbus Operations), AN960KD816L (Leonardo Spa Helicopters Division - Production Site).
Key specifications for ASNA2397KD816L: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.870 INCHES MINIMUM AND 0.895 INCHES MAXIMUM IN; Material Document and Classification: QQ-A-250/5 COND T3 OR T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 11 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.