The Washer,key, cataloged under National Stock Number 5310-00-469-5271, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-469-5271 |
| Primary Part Number | 1707-269 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Internal Straight Key Width | 0.094 INCHES NOMINAL IN |
| Distance From Centerline to Top of Internal Key | 0.193 INCHES NOMINAL IN |
| Distance From Centerline to Inside of Prebent Key | 0.443 INCHES NOMINAL IN |
| External Prebent Key Length | 0.281 INCHES NOMINAL IN |
| Overall Distance Including Keys | 1.120 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 0.883 INCHES NOMINAL IN |
| Material Thickness | 0.067 INCHES NOMINAL IN |
| External Prebent Key Width | 0.281 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 OVERALL |
| Hole Diameter | 0.510 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 |
NSN 5310-00-469-5271 is a Washer,key, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-469-5271 has 2 manufacturer part numbers on file: 1707-269 (Goodrich Corporation), 1707-269 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-523-6508. Verify interchangeability with system specifications before substitution.
Key specifications for 1707-269: Internal Straight Key Width: 0.094 INCHES NOMINAL IN; Distance From Centerline to Top of Internal Key: 0.193 INCHES NOMINAL IN; Distance From Centerline to Inside of Prebent Key: 0.443 INCHES NOMINAL IN; External Prebent Key Length: 0.281 INCHES NOMINAL IN. 14 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.