The Screw,shoulder, cataloged under National Stock Number 5305-01-377-3710, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-377-3710 |
| Primary Part Number | 951731-1 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Width Across Flats | 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN |
| Head Height | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Fastener Length | 0.470 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN |
| Shoulder Length | 0.375 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.005 INCHES MINIMUM AND 0.031 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.408 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | PAN |
| 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 | 0.186 INCHES MINIMUM AND 0.187 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 |
NSN 5305-01-377-3710 is a Screw,shoulder, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-377-3710 has 2 manufacturer part numbers on file: 951731-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), X62751 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation).
Key specifications for 951731-1: Width Across Flats: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN; Head Height: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN; Fastener Length: 0.470 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN; Shoulder Length: 0.375 INCHES NOMINAL FIRST SHOULDER IN. 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.