The Washer,key, cataloged under National Stock Number 5310-00-177-7559, 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 7 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 | 5310-00-177-7559 |
| Primary Part Number | 8267843 |
| 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 | 171 FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Overall Distance Including Keys | 0.428 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-22216 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 302 OR STEEL COMP 304 OVERALL |
| Hole Diameter | 0.250 INCHES MINIMUM AND 0.251 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 |
|---|---|
| 8267843 PRIMARY | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
NSN 5310-00-177-7559 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 5310-00-177-7559 has 1 manufacturer part number on file: 8267843 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
Key specifications for 8267843: Surface Treatment Document and Classification: 171 FINISH 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Overall Distance Including Keys: 0.428 INCHES NOMINAL IN; Material Document and Classification: MIL-S-22216 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Outside Diameter: 0.375 INCHES NOMINAL IN. 7 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.