The Washer,key, cataloged under National Stock Number 5310-01-019-1556, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-019-1556 |
| Primary Part Number | 10246270-1 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 4.375 INCHES MAXIMUM IN |
| Criticality Code Justification | SFTT |
| Style Designator | KEY |
| Material Document and Classification | FED STD 66,COMP 1010 TO 1035 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 3.844 INCHES MINIMUM AND 3.874 INCHES MAXIMUM IN |
| Material Thickness | 0.067 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| External Key Quantity | 19 |
| Internal Prebent Key Length | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| External Prebent Key Width | 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Hole Diameter | 3.177 INCHES MINIMUM AND 3.207 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 10246270-1 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5310-01-019-1556 is a Washer,key, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-019-1556 has 1 manufacturer part number on file: 10246270-1 (Us Army Aviation and Missile Command).
Key specifications for 10246270-1: Surface Treatment Document and Classification: QQ-P-416,TYPE II,CLASS C FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN; Overall Distance Including Keys: 4.375 INCHES MAXIMUM IN; Criticality Code Justification: SFTT. 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.