The Bolt,shoulder, cataloged under National Stock Number 5306-00-377-4158, 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 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-377-4158 |
| Primary Part Number | 4005270 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Fastener Length | 11.000 INCHES MINIMUM AND 11.020 INCHES MAXIMUM IN |
| Shoulder Length | 10.178 INCHES MINIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.750 INCHES MINIMUM AND 0.842 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 85000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 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 |
|---|---|
| 4005270 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 405270 | 5/2 Secondary reference U.S. Government activity |
| 4005270 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 405270 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5306-00-377-4158 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-377-4158 has 1 manufacturer part number on file: 4005270 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 4005270: Head Height: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Fastener Length: 11.000 INCHES MINIMUM AND 11.020 INCHES MAXIMUM IN; Shoulder Length: 10.178 INCHES MINIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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.