The Screw,shoulder, cataloged under National Stock Number 5305-01-529-2014, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Unicorp.. Government technical data includes 16 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 | 5305-01-529-2014 |
| Primary Part Number | SCB-250-2 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Unicorp. |
| Status | ACTIVE |
| Width Across Flats | 0.078 INCHES NOMINAL IN |
| Head Height | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN |
| Shoulder Length | 0.157 INCHES MINIMUM AND 0.159 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.156 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.250 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 |
|---|---|
| SCB-250-2 PRIMARY | Unicorp. (USA) |
NSN 5305-01-529-2014 is a Screw,shoulder, manufactured by Unicorp., classified under FSC 5305, Screws. Status: active.
NSN 5305-01-529-2014 has 1 manufacturer part number on file: SCB-250-2 (Unicorp.).
Key specifications for SCB-250-2: Width Across Flats: 0.078 INCHES NOMINAL IN; Head Height: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Fastener Length: 0.344 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN; Shoulder Length: 0.157 INCHES MINIMUM AND 0.159 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.