The Screw,shoulder, cataloged under National Stock Number 5305-01-617-2339, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Veterans Fastener Supply Corp. Dba Veterans Fastener Supply Corp. Government technical data includes 20 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 | 5305-01-617-2339 |
| Primary Part Number | SSB17-4PH006C028SS |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Veterans Fastener Supply Corp. Dba Veterans Fastener Supply Corp |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Head Height | 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Shoulder Length | 1.125 INCHES NOMINAL OVERALL IN |
| Shoulder Diameter | 0.496 INCHES MINIMUM AND 0.498 INCHES MAXIMUM OVERALL IN |
| Thread Length | 0.625 INCHES NOMINAL IN |
| Shoulder Shape | ROUND OVERALL |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 05047-ASME B18.3-1988 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Minimum Tensile Strength | 140000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 120000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.729 INCHES MINIMUM AND 0.750 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 |
| Part Number | Manufacturer |
|---|---|
| SSB17-4PH006C028SS PRIMARY | Veterans Fastener Supply Corp. Dba Veterans Fastener Supply Corp (USA) |
NSN 5305-01-617-2339 is a Screw,shoulder, manufactured by Veterans Fastener Supply Corp. Dba Veterans Fastener Supply Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-617-2339 has 1 manufacturer part number on file: SSB17-4PH006C028SS (Veterans Fastener Supply Corp. Dba Veterans Fastener Supply Corp).
Key specifications for SSB17-4PH006C028SS: Width Across Flats: 0.250 INCHES NOMINAL IN; Head Height: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Fastener Length: 1.750 INCHES NOMINAL IN; Shoulder Length: 1.125 INCHES NOMINAL OVERALL IN. 20 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.