The Setscrew, cataloged under National Stock Number 5305-01-175-2168, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-175-2168 |
| Primary Part Number | 05456-20F-72C |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.908 INCHES MINIMUM AND 0.966 INCHES MAXIMUM IN |
| Fastener Length | 5.286 INCHES MINIMUM AND 5.408 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Supplementary Features | APPL NEEDS LOC-WEL LOCKING ELEMENT |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 1.250 INCHES IN |
| Head Style | SQUARE |
| Thread Direction | RIGHT-HAND |
| Point Style | HALF DOG |
| Specification/standard Data | 81348-FF-S-210 GOVERNMENT SPECIFICATION |
| Width Between Flats | 1.219 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE AND 6 STYLE AND 1 1/4 SIZE AND 4 1/2 LENGTH |
| Surface Treatment | CADMIUM OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 7 |
| Material | STEEL COMP 4032 OR STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNRC |
| 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 |
|---|---|
| 05456-20F-72C PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| FF-S-210 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-175-2168 is a Setscrew, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-175-2168 has 1 manufacturer part number on file: 05456-20F-72C (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 05456-20F-72C: Head Height: 0.908 INCHES MINIMUM AND 0.966 INCHES MAXIMUM IN; Fastener Length: 5.286 INCHES MINIMUM AND 5.408 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Supplementary Features: APPL NEEDS LOC-WEL LOCKING ELEMENT. 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.