The Washer,key, cataloged under National Stock Number 5310-01-104-9193, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-104-9193 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 4.865 INCHES MINIMUM AND 4.885 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Outside Diameter | 4.115 INCHES MINIMUM AND 4.135 INCHES MAXIMUM IN |
| Material Thickness | 0.065 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| External Straight Key Width | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| External Key Quantity | 3 |
| Internal Prebent Key Length | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Diameter | 2.052 INCHES MINIMUM AND 2.072 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 |
|---|---|
| 423024-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-104-9193 is a Washer,key, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-104-9193: Surface Treatment Document and Classification: MIL-STD-171 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Overall Distance Including Keys: 4.865 INCHES MINIMUM AND 4.885 INCHES MAXIMUM IN; Style Designator: KEY. 12 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.