The Setscrew, cataloged under National Stock Number 5305-01-111-4389, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Setscrew |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Fastener Innovation Technology, Inc. Dba F I T (CAGE 58998) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-111-4389 |
| Primary Part Number | FS2052-54 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Fastener Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | POINTLESS |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNJS |
| 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 |
|---|---|
| FS2052-54 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| Reference | Meaning |
|---|---|
| APR430-4 | 5/9 Secondary reference Schroff Inc |
| APR430-4 | 5/9 Secondary reference U.S. Government activity |
| APR430-4 | 5/9 Secondary reference Precise of California Div of Adjustable Bushing Corp |
| 965808-54 | 3/2 Design control — primary reference U.S. Government activity |
| 965808-54 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-111-4389 is a Setscrew, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-111-4389 has 1 manufacturer part number on file: FS2052-54 (Fastener Innovation Technology, Inc. Dba F I T).
Key specifications for FS2052-54: Fastener Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Material Document and Classification: ASTM COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.