The Setscrew, cataloged under National Stock Number 5305-01-044-6555, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-044-6555 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.035 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN |
| Fastener Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Thread Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 303 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 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 |
|---|---|
| 303-2-56X1-16 | 3/9 Design control — primary reference Allen Mfg Co Sub of Chicago Pneumatic Tool Co |
| 0455-62 | 7/2 Vendor item drawing reference Alliant Techsystems Operations Llc Div Defense Electronic Systems |
NSN 5305-01-044-6555 is a Setscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-044-6555: Width Across Flats: 0.035 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN; Fastener Length: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN; Thread Length: 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.086 INCHES IN. 13 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.