The Setscrew, cataloged under National Stock Number 5305-01-446-4956, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-446-4956 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 3.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286, CLASS A, HF-A-AH OR CD-A-AH FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Point Style | OVAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 11 |
| Material | NICKEL ALLOY K-500 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 102A2-X-143 | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| W-249792 ITEM NO. 259B | 5/9 Secondary reference U.S. Government activity |
| W-249792 ITEM NO. 259B | C/1 Advisory reference — outside the item-of-supply concept Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 102A2-X-143 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5305-01-446-4956 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-446-4956: Fastener Length: 3.250 INCHES NOMINAL IN; Material Document and Classification: QQ-N-286, CLASS A, HF-A-AH OR CD-A-AH FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Head Style: SQUARE; Thread Direction: RIGHT-HAND. 9 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.