The Screw,close Tolerance, cataloged under National Stock Number 5305-01-476-9165, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 25 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-476-9165 |
| Primary Part Number | TX1027V4-4A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Point Diameter | 0.425 INCHES NOMINAL IN |
| Fastener Length | 0.675 INCHES NOMINAL IN |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| 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 | 0.250 INCHES NOMINAL IN |
| Grip Diameter | 0.249 INCHES NOMINAL IN |
| Minimum Tensile Strength | 3200 POUNDS PER SQUARE INCH LBS |
| 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 | TITANIUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.358 INCHES MINIMUM AND 0.365 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 | Y |
| Part Number | Manufacturer |
|---|---|
| TX1027V4-4A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1170V4-4A | Huck International, Inc (USA) |
| GS1014V4-4A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170V4-4A | Howmet Global Fastening Systems Inc (USA) |
| 3M1170V4-4A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1170V4-4A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| TX1027V4-4A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 3M1170V4-4A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 11845V4-4A PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1170V4-4A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170V4-4A PRIMARY | Saturn Fasteners Inc (USA) |
| 3M1170V4-4A PRIMARY | The Boeing Company Div Defense (USA) |
| 3M1170V4-4A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| WC1170V4-4A | West Coast Aerospace, Inc. (USA) |
| 3M1170V4-4A | West Coast Aerospace, Inc. (USA) |
| 3M1170V4-4A | Heartland Precision Fasteners Inc (USA) |
| TX1027V4-4A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1027V4-4A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027V4-4A PRIMARY | Huck International, Inc (USA) |
| 3M1170V4-4A | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| TX1027V4-4A | 5/2 Secondary reference U.S. Government activity |
| TX1027V4-4A | 3/2 Design control — primary reference U.S. Government activity |
| TX1027V4-4A | 5/9 Secondary reference Sps Technologies Inc |
| 3M1170V4-4A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-476-9165 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-476-9165 has 25 manufacturer part numbers on file: TX1027V4-4A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 3M1170V4-4A (Huck International, Inc), GS1014V4-4A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 3M1170V4-4A (Howmet Global Fastening Systems Inc), 3M1170V4-4A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 20 more.
Key specifications for TX1027V4-4A: Point Diameter: 0.425 INCHES NOMINAL IN; Fastener Length: 0.675 INCHES NOMINAL IN; Thread Length: 0.425 INCHES NOMINAL IN; Criticality Code Justification: AGAV. 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.