The Bolt,shoulder, cataloged under National Stock Number 5306-01-513-7127, 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 Div PB Fasteners. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-513-7127 |
| Primary Part Number | PBF1263-6-34P |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Fastener Length | 2.688 INCHES MINIMUM AND 2.718 INCHES MAXIMUM IN |
| Shoulder Length | 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | AMS-QQ-C-320 ASSN STD SINGLE TREATMENT RESPONSE GRIP |
| Shoulder Diameter | 0.672 INCHES MINIMUM AND 0.682 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.578 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.679 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Surface Treatment | CHROMIUM GRIP |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| ST3M494-6-34P | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| PBF1263-6-34P PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| S11-1065-6-34P | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M494-6-34P | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| VS3251-6-34P | 5/2 Secondary reference U.S. Government activity |
| ST3M494-6-34P | 5/2 Secondary reference U.S. Government activity |
| ST3M494-6-34P | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-513-7127 is a Bolt,shoulder, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-513-7127 has 4 manufacturer part numbers on file: ST3M494-6-34P (Sps Technologies Ltd, Tj Brooks Division), PBF1263-6-34P (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), S11-1065-6-34P (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M494-6-34P (The Boeing Company Div Defense).
Key specifications for PBF1263-6-34P: Head Height: 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN; Fastener Length: 2.688 INCHES MINIMUM AND 2.718 INCHES MAXIMUM IN; Shoulder Length: 0.015 INCHES MINIMUM AND 0.025 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: AMS-QQ-C-320 ASSN STD SINGLE TREATMENT RESPONSE GRIP. 18 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.