The Screw,close Tolerance, cataloged under National Stock Number 5305-01-481-9469, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5305-01-481-9469 |
| Primary Part Number | TX1027V4-2A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Point Diameter | 0.425 INCHES NOMINAL IN |
| Fastener Length | 0.550 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 | 0.125 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 |
|---|---|
| TX1027V4-2A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 3M1170V4-2A | Houston Precision Fasteners I Lp (USA) |
| 3M1170V4-2A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| 3M1170V4-2A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| TX1027V4-2A PRIMARY | Huck International, Inc (USA) |
| TX1027V4-2A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1170V4-2A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| TX1027V4-2A | Howmet Global Fastening Systems Inc (USA) |
| WC1170V4-2A | West Coast Aerospace, Inc. (USA) |
| 11845V4-2A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027V4-2A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1014V4-2A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1170V4-2A | Heartland Precision Fasteners Inc (USA) |
| 3M1170V4-2A | Saturn Fasteners Inc (USA) |
| TX1027V4-2A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027V4-2A | Hi-Shear Corporation (USA) |
| 3M1170V4-2A PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 11825V4-2A | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
| TX1027V4-2A | 3/2 Design control — primary reference U.S. Government activity |
| TX1027V4-2A | 5/9 Secondary reference Sps Technologies Inc |
| TX1027V4-2A | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| TX1027V4-2A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-481-9469 is a Screw,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-481-9469 has 17 manufacturer part numbers on file: TX1027V4-2A (Fairchild Fasteners Europe - Vsd Gmbh), 3M1170V4-2A (Houston Precision Fasteners I Lp), 3M1170V4-2A (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), 3M1170V4-2A (Fastener Innovation Technology, Inc. Dba F I T), TX1027V4-2A (Huck International, Inc) and 12 more.
Key specifications for TX1027V4-2A: Point Diameter: 0.425 INCHES NOMINAL IN; Fastener Length: 0.550 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.