The Screw,shoulder, cataloged under National Stock Number 5305-01-044-5210, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-044-5210 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Extended Washer Thickness | 0.040 INCHES MINIMUM IN |
| Head Height | 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN |
| Fastener Length | 2.370 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN |
| Shoulder Length | 1.904 INCHES MINIMUM AND 1.914 INCHES MAXIMUM FIRST SHOULDER IN |
| Extended Washer Diameter | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.394 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM OVERALL |
| Criticality Code Justification | FEAT |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Internal Drive Style | DOUBLE HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL 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 | Y |
| Reference | Meaning |
|---|---|
| 3029T59P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-044-5210 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-044-5210: Extended Washer Thickness: 0.040 INCHES MINIMUM IN; Head Height: 0.250 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN; Fastener Length: 2.370 INCHES MINIMUM AND 2.390 INCHES MAXIMUM IN; Shoulder Length: 1.904 INCHES MINIMUM AND 1.914 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.