The Setscrew, cataloged under National Stock Number 5305-01-121-5486, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-121-5486 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-A-8625,TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OR HS 132,FSCM 81982 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Distance Between Hole Centers | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/6,T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | HALF DOG |
| Locking Feature | PELLET THREADS |
| Surface Treatment | ANODIZE OVERALL |
| Internal Drive Style | DRILLED HOLES |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 39-58113 | 3/2 Design control — primary reference U.S. Government activity |
| 10115089 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-121-5486 is a Setscrew, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-01-641-2747. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-121-5486: Fastener Length: 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-A-8625,TY 1 CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OR HS 132,FSCM 81982 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Distance Between Hole Centers: 0.500 INCHES NOMINAL IN; Thread Length: 0.370 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN. 16 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.