The Washer,key, cataloged under National Stock Number 5310-00-981-6903, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Watervliet Arsenal Div Business Development. Government technical data includes 15 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 | 5310-00-981-6903 |
| Primary Part Number | 8769158 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Watervliet Arsenal Div Business Development |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Internal Prebent Key Width | 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Overall Distance Including Keys | 3.125 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Hardness Rating | 50.0 ROCKWELL B MINIMUM AND 80.0 ROCKWELL B MAXIMUM |
| Style Designator | KEY |
| Material Document and Classification | QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Outside Diameter | 2.281 INCHES MINIMUM AND 2.311 INCHES MAXIMUM IN |
| Material Thickness | 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN |
| External Key Quantity | 17 |
| Internal Prebent Key Length | 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Surface Treatment | PHOSPHATE OVERALL |
| External Prebent Key Width | 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Material | STEEL COMP 1025 OR STEEL COMP 1030 OVERALL |
| Hole Diameter | 1.792 INCHES MINIMUM AND 1.817 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 |
|---|---|
| 8769158 PRIMARY | Army, United States Department of the Dba Watervliet Arsenal Div Business Development (USA) |
NSN 5310-00-981-6903 is a Washer,key, manufactured by Army, United States Department of the Dba Watervliet Arsenal Div Business Development, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-981-6903 has 1 manufacturer part number on file: 8769158 (Army, United States Department of the Dba Watervliet Arsenal Div Business Development).
Key specifications for 8769158: Surface Treatment Document and Classification: MIL-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Internal Prebent Key Width: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN; Overall Distance Including Keys: 3.125 INCHES NOMINAL IN; Heat Treatment: AS FABRICATED. 15 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.