The Washer,key, cataloged under National Stock Number 5310-00-710-9429, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-710-9429 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | BPSFW4084,FSCM 97499 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Distance From Centerline to Inside of Prebent Key | 2.065 INCHES MINIMUM AND 2.085 INCHES MAXIMUM IN |
| Internal Prebent Key Width | 0.180 INCHES NOMINAL IN |
| Overall Distance Including Keys | 5.000 INCHES NOMINAL IN |
| Style Designator | EXTERNAL AND INTERNAL PRE-BENT KEYS |
| Material Document and Classification | AMS6357 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 4.610 INCHES NOMINAL IN |
| Material Thickness | 0.050 INCHES NOMINAL IN |
| External Key Quantity | 19 |
| External Prebent Key Angle | 24.5 DEGREES MINIMUM AND 25.5 DEGREES MAXIMUM |
| Internal Prebent Key Length | 0.170 INCHES NOMINAL IN |
| Surface Treatment | OXIDE FILM OVERALL |
| External Prebent Key Width | 0.200 INCHES NOMINAL IN |
| Material | STEEL OR STEEL COMP 4130 OVERALL |
| Internal Key Quantity | 2 |
| Hole Diameter | 4.255 INCHES MINIMUM AND 4.265 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 204-040-253-1 | 5/9 Secondary reference Pyramid Machine Corp Div of Transupport Inc |
| 204-040-253-1 | 5/9 Secondary reference U.S. Government activity |
| 204-040-253-1 | 3/2 Design control — primary reference U.S. Government activity |
| 204-040-253-001 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-00-710-9429 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-710-9429: Surface Treatment Document and Classification: BPSFW4084,FSCM 97499 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Distance From Centerline to Inside of Prebent Key: 2.065 INCHES MINIMUM AND 2.085 INCHES MAXIMUM IN; Internal Prebent Key Width: 0.180 INCHES NOMINAL IN; Overall Distance Including Keys: 5.000 INCHES NOMINAL IN. 16 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.