The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-033-4356, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-033-4356 |
| Primary Part Number | LP57N38P5 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok Llc |
| Status | ACTIVE |
| Head Height | 0.061 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.270 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.099 INCHES IN |
| Head Style | FILLISTER |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP THREADS |
| Surface Treatment | PASSIVATE FASTENER |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 48 |
| Material | PLASTIC LOCKING FEATURE |
| Material | STEEL CORROSION RESISTING FASTENER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.145 INCHES MINIMUM AND 0.161 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 |
|---|---|
| LP57N38P5 PRIMARY | Long-Lok Llc (USA) |
| Reference | Meaning |
|---|---|
| 7601297-16 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5305-01-033-4356 is a Screw,cap,socket Head, manufactured by Long-Lok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-033-4356 has 1 manufacturer part number on file: LP57N38P5 (Long-Lok Llc).
Key specifications for LP57N38P5: Head Height: 0.061 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Fastener Length: 0.312 INCHES NOMINAL IN; Thread Length: 0.270 INCHES NOMINAL IN; Nominal Thread Diameter: 0.099 INCHES 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.