The Screw,close Tolerance, cataloged under National Stock Number 5305-01-513-9071, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-513-9071 |
| Primary Part Number | TX1027C5-11A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Point Diameter | 0.469 INCHES NOMINAL IN |
| Fastener Length | 1.142 INCHES MINIMUM AND 1.172 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 | 0.678 INCHES MINIMUM AND 0.698 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 | 0.464 INCHES MINIMUM AND 0.473 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 |
|---|---|
| 3M1170C5-11A | The Boeing Company Div Defense (USA) |
| TX1027C5-11A PRIMARY | Hi-Shear Corporation (USA) |
| TX1027C5-11A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1027C5-11A PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027C5-11A PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| TX1027C5-11A PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 11825C5-11A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027C5-11A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| GS1014C5-11A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027C5-11A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| TX1027C5-11A | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-513-9071 is a Screw,close Tolerance, manufactured by Hi-Shear Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-513-9071 has 10 manufacturer part numbers on file: 3M1170C5-11A (The Boeing Company Div Defense), TX1027C5-11A (Hi-Shear Corporation), TX1027C5-11A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), TX1027C5-11A (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), TX1027C5-11A (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 5 more.
Key specifications for TX1027C5-11A: Point Diameter: 0.469 INCHES NOMINAL IN; Fastener Length: 1.142 INCHES MINIMUM AND 1.172 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.