The Bolt,shoulder, cataloged under National Stock Number 5306-00-671-6516, is classified within Federal Supply Class 5306 (Bolts) 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-671-6516 |
| Primary Part Number | SPS50644-23 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN |
| Fastener Length | 4.820 INCHES MINIMUM AND 4.867 INCHES MAXIMUM IN |
| Shoulder Length | 3.844 INCHES MINIMUM AND 3.891 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 1.4355 INCHES MINIMUM AND 1.4365 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.841 INCHES MINIMUM AND 0.861 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.131 INCHES MINIMUM AND 0.157 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 1.125 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.850 INCHES MINIMUM AND 1.910 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.620 INCHES MINIMUM AND 4.652 INCHES MAXIMUM FIRST HOLE 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 |
|---|---|
| SPS50644-23 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
NSN 5306-00-671-6516 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-671-6516 has 1 manufacturer part number on file: SPS50644-23 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for SPS50644-23: Head Height: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN; Fastener Length: 4.820 INCHES MINIMUM AND 4.867 INCHES MAXIMUM IN; Shoulder Length: 3.844 INCHES MINIMUM AND 3.891 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.