The Washer,key, cataloged under National Stock Number 5310-01-127-7602, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-127-7602 |
| Primary Part Number | 12283426-2 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS II FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 3.215 INCHES MINIMUM AND 3.225 INCHES MAXIMUM IN |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.020 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN |
| Material Thickness | 0.015 INCHES NOMINAL IN |
| External Straight Key Width | 0.165 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| External Key Quantity | 2 |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Material | STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL |
| Hole Diameter | 1.905 INCHES MINIMUM AND 1.915 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 |
| Part Number | Manufacturer |
|---|---|
| 12283426-2 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| Reference | Meaning |
|---|---|
| 35597-2 | 5/9 Secondary reference Cadillac Gage Textron Inc. |
| 12283426-2 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5310-01-127-7602 is a Washer,key, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-127-7602 has 1 manufacturer part number on file: 12283426-2 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 12283426-2: Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS II FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 3.215 INCHES MINIMUM AND 3.225 INCHES MAXIMUM IN; Style Designator: KEY; Material Document and Classification: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 11 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.