The Screw,close Tolerance, cataloged under National Stock Number 5305-01-495-9256, 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 19 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-495-9256 |
| Primary Part Number | 3M1169C4-8A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Point Diameter | 0.425 INCHES NOMINAL IN |
| Fastener Length | 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Thread Length | 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Grip Diameter | 0.249 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | TORX |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.497 INCHES MINIMUM AND 0.506 INCHES MAXIMUM IN |
| 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 |
|---|---|
| TX1026C4-8A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 3M1169C4-8A | The Boeing Company Div Defense (USA) |
| TX1026C4-8A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1169C4-8A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 11827C4-8A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1026C4-8A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026C4-8A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1006C4-8A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1026C4-8A | Howmet Global Fastening Systems Inc (USA) |
| TX1026C4-8A | Hi-Shear Corporation (USA) |
| 3M1169C4-8A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| TX1026C4-8A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| WC1169C4-8A | West Coast Aerospace, Inc. (USA) |
| 3M1169C4-8A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1026C4-8A | 5/9 Secondary reference Sps Technologies Inc |
| TX1026C4-8A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-495-9256 is a Screw,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-495-9256 has 14 manufacturer part numbers on file: TX1026C4-8A (Fairchild Fasteners Europe - Vsd Gmbh), 3M1169C4-8A (The Boeing Company Div Defense), TX1026C4-8A (Sps Technologies, Llc Dba PB Fasteners), 3M1169C4-8A (Fastener Innovation Technology, Inc. Dba F I T), 11827C4-8A (Reid Products Inc. Dba Reid Products Inc) and 9 more.
Key specifications for 3M1169C4-8A: Point Diameter: 0.425 INCHES NOMINAL IN; Fastener Length: 0.910 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Thread Length: 0.420 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN; Material Document and Classification: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 19 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.