The Screw,shoulder, cataloged under National Stock Number 5305-01-419-2391, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-419-2391 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.075 INCHES NOMINAL IN |
| Fastener Length | 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Shoulder Length | 0.260 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.135 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.180 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 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 |
| Reference | Meaning |
|---|---|
| 39098-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-419-2391 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-419-2391: Head Height: 0.075 INCHES NOMINAL IN; Fastener Length: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN; Shoulder Length: 0.260 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM FIRST SHOULDER 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.