The Screw,shoulder, cataloged under National Stock Number 5305-01-361-3548, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-361-3548 |
| Primary Part Number | 140A807-1 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.281 INCHES NOMINAL IN |
| Shoulder Length | 0.160 INCHES MINIMUM AND 0.162 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | ASTM A582 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.155 INCHES MINIMUM AND 0.156 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OR STEEL COMP 303MA OR STEEL COMP 303PB OR STEEL COMP 303 PLUS X OR STEEL COMP 303SE OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.125 INCHES NOMINAL 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 |
|---|---|
| 140A807-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5305-01-361-3548 is a Screw,shoulder, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-361-3548 has 1 manufacturer part number on file: 140A807-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 140A807-1: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 0.281 INCHES NOMINAL IN; Shoulder Length: 0.160 INCHES MINIMUM AND 0.162 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: ASTM A582 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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.