The Screw,close Tolerance, cataloged under National Stock Number 5305-01-526-4035, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-526-4035 |
| Primary Part Number | TX1026C5-20A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Point Diameter | 0.469 INCHES NOMINAL IN |
| Fastener Length | 1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM IN |
| Thread Length | 0.464 INCHES MINIMUM AND 0.474 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 | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM IN |
| Grip Diameter | 0.312 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 | 0.6230 INCHES MINIMUM AND 0.6335 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 |
|---|---|
| TX1026C5-20A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1026C5-20A | Hi-Shear Corporation (USA) |
| TX1026C5-20A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026C5-20A | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026C5-20A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| TX1026C5-20A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026C5-20A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 3M1169C5-20A PRIMARY | The Boeing Company Div Defense (USA) |
| GS1006C5-20A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| TX1026C5-20A | 5/9 Secondary reference Sps Technologies Inc |
| TX1026C5-20A | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-526-4035 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-526-4035 has 9 manufacturer part numbers on file: TX1026C5-20A (Fairchild Fasteners Europe - Vsd Gmbh), TX1026C5-20A (Hi-Shear Corporation), TX1026C5-20A (Howmet Global Fastening Systems Inc), TX1026C5-20A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), TX1026C5-20A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 4 more.
Key specifications for TX1026C5-20A: Point Diameter: 0.469 INCHES NOMINAL IN; Fastener Length: 1.704 INCHES MINIMUM AND 1.734 INCHES MAXIMUM IN; Thread Length: 0.464 INCHES MINIMUM AND 0.474 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.