The Setscrew, cataloged under National Stock Number 5305-01-256-4235, 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 11 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-256-4235 |
| Primary Part Number | CS3125HS-3-8-F |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Width Across Flats | 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | POINTLESS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| CS3125HS-3-8-F PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 2691676-4 PRIMARY | Huck International, Inc. Div Huck Products Division (USA) |
| FT1883HS-10-6-8 PRIMARY | Fastener Technology Corp (USA) |
| Reference | Meaning |
|---|---|
| 2691676-4 | 7/2 Vendor item drawing reference U.S. Government activity |
| C53125-4 | 5/9 Secondary reference Fastener Innovation Technology, Inc. Dba F I T |
| D7920HS-10-F-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-256-4235 is a Setscrew, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-256-4235 has 3 manufacturer part numbers on file: CS3125HS-3-8-F (Fastener Innovation Technology, Inc. Dba F I T), 2691676-4 (Huck International, Inc. Div Huck Products Division), FT1883HS-10-6-8 (Fastener Technology Corp).
Key specifications for CS3125HS-3-8-F: Width Across Flats: 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN; Head Style: HEADLESS (SETSCREW). 11 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.