The Screw,shoulder, cataloged under National Stock Number 5305-01-021-1015, 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 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-021-1015 |
| Primary Part Number | 12705L-8C-80 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES MAXIMUM IN |
| Head Height | 0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Fastener Length | 5.602 INCHES MINIMUM AND 5.628 INCHES MAXIMUM IN |
| Thread Length | 0.512 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 12705L-8C-80 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 12705L-8C-80 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-021-1015 is a Screw,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-021-1015 has 1 manufacturer part number on file: 12705L-8C-80 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 12705L-8C-80: Width Across Flats: 0.250 INCHES MAXIMUM IN; Head Height: 0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN; Fastener Length: 5.602 INCHES MINIMUM AND 5.628 INCHES MAXIMUM IN; Thread Length: 0.512 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN. 12 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.