The Screw,close Tolerance, cataloged under National Stock Number 5305-01-526-7962, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-526-7962 |
| Primary Part Number | TX1026C3-2A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN |
| Fastener Length | 0.455 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Material Document and Classification | AAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.1540 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Grip Length | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM 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 | 32 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.3729 INCHES MINIMUM AND 0.3813 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 |
|---|---|
| TX1026C3-2A PRIMARY | Hi-Shear Corporation (USA) |
| 3M1169C3-2A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1169C3-2A | Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc (USA) |
| TX1026C3-2A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026C3-2A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GS1006C3-2A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1026C3-2A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026C3-2A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026C3-2A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| TX1026C3-2A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| WC1169C3-2A PRIMARY | West Coast Aerospace, Inc. (USA) |
| 3M1169C3-2A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1026C3-2A | 3/2 Design control — primary reference U.S. Government activity |
| TX1026C3-2A | 5/9 Secondary reference Sps Technologies Inc |
| 3M1169C3-2A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5305-01-526-7962 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-526-7962 has 12 manufacturer part numbers on file: TX1026C3-2A (Hi-Shear Corporation), 3M1169C3-2A (Fastener Innovation Technology, Inc. Dba F I T), 3M1169C3-2A (Twist Tite Mfg, Inc Dba Twist Tite Manufacturing Inc), TX1026C3-2A (Howmet Global Fastening Systems Inc), TX1026C3-2A (Sps Technologies, Llc Dba PB Fasteners) and 7 more.
Key specifications for TX1026C3-2A: Spline Minor Diameter: 0.1105 INCHES MINIMUM AND 0.1125 INCHES MAXIMUM IN; Fastener Length: 0.455 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN; Thread Length: 0.345 INCHES NOMINAL IN; Material Document and Classification: AAMS 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.