The Screw,shoulder, cataloged under National Stock Number 5305-01-157-7399, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Manassas. Government technical data includes 19 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 | 5305-01-157-7399 |
| Primary Part Number | 2836049-1 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rms - Manassas |
| Status | ACTIVE |
| Width Across Flats | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Head Height | 0.204 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN |
| Fastener Length | 0.613 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN |
| Shoulder Length | 0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35,TY 4 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.430 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.355 INCHES MINIMUM AND 0.375 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 |
|---|---|
| 2836049-1 PRIMARY | Lockheed Martin Corporation Div Rms - Manassas (USA) |
NSN 5305-01-157-7399 is a Screw,shoulder, manufactured by Lockheed Martin Corporation Div Rms - Manassas, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-157-7399 has 1 manufacturer part number on file: 2836049-1 (Lockheed Martin Corporation Div Rms - Manassas).
Key specifications for 2836049-1: Width Across Flats: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN; Head Height: 0.204 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN; Fastener Length: 0.613 INCHES MINIMUM AND 0.643 INCHES MAXIMUM IN; Shoulder Length: 0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM FIRST SHOULDER IN. 19 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.