The Screw,close Tolerance, cataloged under National Stock Number 5305-01-538-9765, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-538-9765 |
| Primary Part Number | LA-NAS1125-18 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Head Height | 0.162 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN |
| Fastener Length | 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.312 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.429 INCHES MINIMUM AND 0.438 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 |
|---|---|
| LA-NAS1125-18 | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| LA-NAS1125-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-538-9765 is a Screw,close Tolerance, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-538-9765 has 1 manufacturer part number on file: LA-NAS1125-18 (Lockheed Martin Corporation).
Key specifications for LA-NAS1125-18: Head Height: 0.162 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN; Fastener Length: 1.485 INCHES MINIMUM AND 1.515 INCHES MAXIMUM IN; Thread Length: 0.375 INCHES NOMINAL IN; Nominal Thread Diameter: 0.312 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.