The Screw,close Tolerance, cataloged under National Stock Number 5305-01-513-8686, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-513-8686 |
| Primary Part Number | TX1027C5-8A |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Point Diameter | 0.425 INCHES NOMINAL IN |
| Fastener Length | 0.954 INCHES MINIMUM AND 0.984 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 | 0.490 INCHES MINIMUM AND 0.510 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 |
|---|---|
| TX1027C5-8A | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| TX1027C5-8A PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 11825C5-8A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027C5-8A | Howmet Global Fastening Systems Inc (USA) |
| GS1014C5-8A | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| TX1027C5-8A | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027C5-8A | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| TX1027C5-8A | Hi-Shear Corporation (USA) |
| 3M1170C5-8A | The Boeing Company Div Defense (USA) |
| TX1027C5-8A | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| TX1027C5-8A | 5/2 Secondary reference U.S. Government activity |
| TX1027C5-8A | 5/9 Secondary reference Sps Technologies Inc |
NSN 5305-01-513-8686 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-513-8686 has 10 manufacturer part numbers on file: TX1027C5-8A (Fairchild Fasteners Europe - Vsd Gmbh), TX1027C5-8A (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 11825C5-8A (Reid Products Inc. Dba Reid Products Inc), TX1027C5-8A (Howmet Global Fastening Systems Inc), GS1014C5-8A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 5 more.
Key specifications for TX1027C5-8A: Point Diameter: 0.425 INCHES NOMINAL IN; Fastener Length: 0.954 INCHES MINIMUM AND 0.984 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.