The Bolt,shoulder, cataloged under National Stock Number 5306-01-645-5396, 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 20 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-645-5396 |
| Primary Part Number | PBF1263-4D17M |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Fastener Length | 1.473 INCHES MINIMUM AND 1.503 INCHES MAXIMUM IN |
| Shoulder Length | 1.053 INCHES MINIMUM AND 1.073 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.400 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Supplementary Features | NHA: 74A425000 |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.285 INCHES MINIMUM AND 1.325 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 |
|---|---|
| ST3M494-4D17M | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| PBF1263-4D17M PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| S11-1065-4D17M | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M494-4D17M | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| Reference | Meaning |
|---|---|
| ST3M494-4D17M | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| VS3251-4D17M | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 10430206 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M494-4D17M | 5/2 Secondary reference U.S. Government activity |
| ST3M494-4D17M | 3/2 Design control — primary reference U.S. Government activity |
| ST3M494-4D17M | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-645-5396 is a Bolt,shoulder, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-645-5396 has 4 manufacturer part numbers on file: ST3M494-4D17M (Fastener Innovation Technology, Inc. Dba F I T), PBF1263-4D17M (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), S11-1065-4D17M (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M494-4D17M (Sps Technologies Ltd, Tj Brooks Division).
Key specifications for PBF1263-4D17M: Head Height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN; Fastener Length: 1.473 INCHES MINIMUM AND 1.503 INCHES MAXIMUM IN; Shoulder Length: 1.053 INCHES MINIMUM AND 1.073 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC 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.