The Screw,shoulder, cataloged under National Stock Number 5305-01-280-6734, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-280-6734 |
| Primary Part Number | 123WM10457-615 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Fastener Length | 0.844 INCHES MINIMUM AND 0.864 INCHES MAXIMUM IN |
| Shoulder Length | 0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.330 INCHES MINIMUM AND 0.332 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 123WM10457-615 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 123WM10457-615 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 123WM10457-615 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5305-01-280-6734 is a Screw,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-280-6734 has 1 manufacturer part number on file: 123WM10457-615 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 123WM10457-615: Fastener Length: 0.844 INCHES MINIMUM AND 0.864 INCHES MAXIMUM IN; Shoulder Length: 0.429 INCHES MINIMUM AND 0.439 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.330 INCHES MINIMUM AND 0.332 INCHES MAXIMUM FIRST SHOULDER IN; Thread Length: 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM 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.