The Screw,close Tolerance, cataloged under National Stock Number 5305-01-477-5760, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-477-5760 |
| Primary Part Number | TX1026D6-18A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Point Diameter | 0.578 INCHES NOMINAL IN |
| Fastener Length | 1.698 INCHES MINIMUM AND 1.728 INCHES MAXIMUM IN |
| Thread Length | 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN |
| Material Document and Classification | ANS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.154 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.374 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 | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.749 INCHES MINIMUM AND 0.760 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 |
|---|---|
| TX1026D6-18A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 3M1169D6-18A | The Boeing Company Div Defense (USA) |
| TX1026D6-18A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026D6-18A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026D6-18A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1026D6-18A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1026D6-18A PRIMARY | Hi-Shear Corporation (USA) |
| 11827D6-18A | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1026D6-18A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-477-5760 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-477-5760 has 8 manufacturer part numbers on file: TX1026D6-18A (Howmet Global Fastening Systems Inc), 3M1169D6-18A (The Boeing Company Div Defense), TX1026D6-18A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), TX1026D6-18A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1026D6-18A (Fairchild Fasteners Europe - Vsd Gmbh) and 3 more.
Key specifications for TX1026D6-18A: Point Diameter: 0.578 INCHES NOMINAL IN; Fastener Length: 1.698 INCHES MINIMUM AND 1.728 INCHES MAXIMUM IN; Thread Length: 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN; Material Document and Classification: ANS 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.