The Screw,shoulder, cataloged under National Stock Number 5305-01-167-4055, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 18 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 | 5305-01-167-4055 |
| Primary Part Number | 7031890P003 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 0.640 INCHES NOMINAL IN |
| Shoulder Length | 0.222 INCHES MINIMUM AND 0.232 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.292 INCHES MINIMUM AND 0.302 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.413 INCHES NOMINAL 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 | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.500 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 |
|---|---|
| 7031890P003 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
NSN 5305-01-167-4055 is a Screw,shoulder, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-167-4055 has 1 manufacturer part number on file: 7031890P003 (Lockheed Martin Corporation Div Rms).
Key specifications for 7031890P003: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 0.640 INCHES NOMINAL IN; Shoulder Length: 0.222 INCHES MINIMUM AND 0.232 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.