The Washer,key, cataloged under National Stock Number 5310-01-054-5974, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Diamond Power International, Inc.. Government technical data includes 10 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-054-5974 |
| Primary Part Number | 104116-1116 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Diamond Power International, Inc. |
| Status | ACTIVE |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Style Designator | KEY |
| Material Document and Classification | ASTM B291 1/2 HARD ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 1.062 INCHES NOMINAL IN |
| Material Thickness | 0.036 INCHES NOMINAL IN |
| External Straight Key Width | 0.312 INCHES NOMINAL IN |
| Distance From Centerline to End of Key | 0.750 INCHES NOMINAL IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | COPPER ALLOY OVERALL |
| Hole Diameter | 0.516 INCHES NOMINAL 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 |
|---|---|
| 104116-1116 PRIMARY | Diamond Power International, Inc. (USA) |
NSN 5310-01-054-5974 is a Washer,key, manufactured by Diamond Power International, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-054-5974 has 1 manufacturer part number on file: 104116-1116 (Diamond Power International, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-705-9066. Verify interchangeability with system specifications before substitution.
Key specifications for 104116-1116: Special Test Features: SPECIAL QUALITY CONTROL TESTING; Style Designator: KEY; Material Document and Classification: ASTM B291 1/2 HARD ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 1.062 INCHES NOMINAL IN. 10 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.