The Screw,close Tolerance, cataloged under National Stock Number 5305-01-494-3343, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-494-3343 |
| Primary Part Number | TX1026C5-17A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Spline Minor Diameter | 0.1570 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN |
| Fastener Length | 1.517 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.469 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5622 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.2195 INCHES MINIMUM AND 0.2225 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.0615 INCHES MINIMUM AND 1.0635 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM 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 0.634 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 |
|---|---|
| GS1006C5-17A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11827C5-17A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1026C5-17A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1026C5-17A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1026C5-17A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| TX1026C5-17A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 3M1169C5-17A PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| TX1026C5-17A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-494-3343 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-494-3343 has 7 manufacturer part numbers on file: GS1006C5-17A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 11827C5-17A (Reid Products Inc. Dba Reid Products Inc), TX1026C5-17A (Sps Technologies, Llc Dba PB Fasteners), TX1026C5-17A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1026C5-17A (Howmet Global Fastening Systems Inc) and 2 more.
Key specifications for TX1026C5-17A: Spline Minor Diameter: 0.1570 INCHES MINIMUM AND 0.1600 INCHES MAXIMUM IN; Fastener Length: 1.517 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.469 INCHES NOMINAL IN. 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.