The Screw,close Tolerance, cataloged under National Stock Number 5305-01-508-9326, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-508-9326 |
| Primary Part Number | TX1026C5-11A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Fastener Length | 1.157 INCHES NOMINAL IN |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.219 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 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 | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.623 INCHES MINIMUM AND 0.633 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 |
|---|---|
| TX1026C5-11A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GS1006C5-11A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1026C5-11A | Huck International, Inc (USA) |
| WC1169C5-11A | West Coast Aerospace, Inc. (USA) |
| 3M1169C5-11A | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1169C5-11A | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| TX1026C5-11A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1026C5-11A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11827C5-11A | Reid Products Inc. Dba Reid Products Inc (USA) |
| 3M1169C5-11A | Heartland Precision Fasteners Inc (USA) |
| TX1026C5-11A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026C5-11A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1026C5-11A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1026C5-11A PRIMARY | Hi-Shear Corporation (USA) |
| 3M1169C5-11A | Houston Precision Fasteners I Lp (USA) |
| Reference | Meaning |
|---|---|
| 10154026 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| TX1026C5-11A | 5/2 Secondary reference U.S. Government activity |
| TX1026C5-11A | 3/2 Design control — primary reference U.S. Government activity |
| 3M1169C5-11A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| TX1026C5-11A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-508-9326 is a Screw,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-508-9326 has 15 manufacturer part numbers on file: TX1026C5-11A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GS1006C5-11A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), TX1026C5-11A (Huck International, Inc), WC1169C5-11A (West Coast Aerospace, Inc.), 3M1169C5-11A (Fastener Innovation Technology, Inc. Dba F I T) and 10 more.
Key specifications for TX1026C5-11A: Fastener Length: 1.157 INCHES NOMINAL IN; Thread Length: 0.469 INCHES NOMINAL IN; Material Document and Classification: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Spline Major Diameter: 0.219 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN. 17 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.