The Setscrew, cataloged under National Stock Number 5305-01-331-7553, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-331-7553 |
| Primary Part Number | 13077264-501 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Point Diameter | 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Point Length | 0.093 INCHES NOMINAL IN |
| Fastener Length | 0.312 INCHES NOMINAL IN |
| Thread Length | 0.219 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 45.0 DEGREES NOMINAL |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 56 |
| Material | STEEL COMP 302 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 13077264-501 PRIMARY | Lockheed Martin Corporation (USA) |
| Reference | Meaning |
|---|---|
| 13077264-501 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 5305-01-331-7553 is a Setscrew, manufactured by Lockheed Martin Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-331-7553 has 1 manufacturer part number on file: 13077264-501 (Lockheed Martin Corporation).
Key specifications for 13077264-501: Point Diameter: 0.057 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Point Length: 0.093 INCHES NOMINAL IN; Fastener Length: 0.312 INCHES NOMINAL IN; Thread Length: 0.219 INCHES NOMINAL IN. 16 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.