The Screw,machine, cataloged under National Stock Number 5305-01-445-5596, 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 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-445-5596 |
| Primary Part Number | LL57N26P5 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok, Llc |
| Status | ACTIVE |
| Head Height | 0.066 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| Locking Feature Material Document and Classification | MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Screw Material Document and Classification | QQ-S-763, TYPE 18-8 FED SPEC SINGLE MATERIAL RESPONSE |
| Locking Feature Material | PLASTIC POLYAMIDE NYLON |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.124 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| LL57N26P5 PRIMARY | Long-Lok, Llc (USA) |
| Reference | Meaning |
|---|---|
| 140-5060-001 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-445-5596 is a Screw,machine, manufactured by Long-Lok, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-445-5596 has 1 manufacturer part number on file: LL57N26P5 (Long-Lok, Llc).
Key specifications for LL57N26P5: Head Height: 0.066 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN; Locking Feature Material Document and Classification: MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.312 INCHES NOMINAL IN. 17 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.