The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-207-7181, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Long-Lok, Llc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-207-7181 |
| Primary Part Number | LL35458-12M |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Head Height | 0.190 INCHES NOMINAL IN |
| Fastener Length | 0.625 INCHES NOMINAL IN |
| Thread Length | 0.562 INCHES NOMINAL IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 3140 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.312 INCHES NOMINAL 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 |
|---|---|
| LL35458-12M PRIMARY | Long-Lok, Llc (USA) |
| 330C844D1032C10 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 330C844D1032C10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-207-7181 is a Screw,cap,socket Head, manufactured by Long-Lok, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-207-7181 has 2 manufacturer part numbers on file: LL35458-12M (Long-Lok, Llc), 330C844D1032C10 (Westinghouse Electric Corp).
Key specifications for LL35458-12M: Width Across Flats: 0.156 INCHES NOMINAL IN; Head Height: 0.190 INCHES NOMINAL IN; Fastener Length: 0.625 INCHES NOMINAL IN; Thread Length: 0.562 INCHES NOMINAL IN. 15 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.