The Screw,machine, cataloged under National Stock Number 5305-01-509-9560, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-509-9560 |
| Primary Part Number | PL57D26P4 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok Llc |
| Status | ACTIVE |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Thread Length | 0.250 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP OR PELLET OR PATCH |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE II |
| Thread Quantity Per Inch | 56 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| PL57D26P4 PRIMARY | Long-Lok Llc (USA) |
NSN 5305-01-509-9560 is a Screw,machine, manufactured by Long-Lok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-509-9560 has 1 manufacturer part number on file: PL57D26P4 (Long-Lok Llc).
Key specifications for PL57D26P4: Screw Surface Treatment: PASSIVATE; Fastener Length: 0.250 INCHES NOMINAL IN; Thread Length: 0.250 INCHES NOMINAL IN; Nominal Thread Diameter: 0.086 INCHES IN. 12 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.