The Washer,flat, cataloged under National Stock Number 5310-01-697-1117, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 10 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 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 | 5310-01-697-1117 |
| Primary Part Number | NAS1401-8C5G |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Width Across Flats | 0.900 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS2700, METHOD 1, CLASS 4 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5510 OR MD AMS5512 OR MD AMS5517 OR MD AMS5518 OR M NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | SQUARE |
| Material | STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 305 OR STEEL COMP 316 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.515 INCHES NOMINAL IN |
| Thickness | 0.160 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 |
|---|---|
| NAS1401-8C5G PRIMARY | The Boeing Company (USA) |
NSN 5310-01-697-1117 is a Washer,flat, manufactured by The Boeing Company, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-697-1117 has 1 manufacturer part number on file: NAS1401-8C5G (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-724-8663. Verify interchangeability with system specifications before substitution.
Key specifications for NAS1401-8C5G: Width Across Flats: 0.900 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS2700, METHOD 1, CLASS 4 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: AMS5510 OR MD AMS5512 OR MD AMS5517 OR MD AMS5518 OR M NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 10 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.