The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-709-9686, 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 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-709-9686 |
| Primary Part Number | LL57D40S8M |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok, Llc |
| Status | ACTIVE |
| Head Height | 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.205 INCHES MINIMUM AND 0.219 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 |
|---|---|
| 1240090-33 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| L320008002 | Lockheed Martin Librascope Corporation (USA) |
| LL57D40S8M PRIMARY | Long-Lok, Llc (USA) |
NSN 5305-00-709-9686 is a Screw,cap,socket Head, manufactured by Long-Lok, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-709-9686 has 3 manufacturer part numbers on file: 1240090-33 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), L320008002 (Lockheed Martin Librascope Corporation), LL57D40S8M (Long-Lok, Llc).
Key specifications for LL57D40S8M: Head Height: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN; Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.500 INCHES MINIMUM IN; Nominal Thread Diameter: 0.112 INCHES IN. 13 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.