The Bolt,shoulder, cataloged under National Stock Number 5306-01-053-7633, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-053-7633 |
| Primary Part Number | VCB0008C6-0-300 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Fastener Length | 0.675 INCHES NOMINAL IN |
| Shoulder Length | 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE GRIP |
| Surface Treatment Document and Classification | QQ-C-320 CL 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| Shoulder Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CHROMIUM GRIP |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.160 INCHES NOMINAL 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 |
|---|---|
| VCB0008C6-0-300 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BM4356CR6-0300 | Huck International, Inc (USA) |
| PBF4356CR6-0300 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SII1058CR6-0300 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 71657CR-6-0300 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC4356CR6-0300 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C4356CR6-0300 | Saturn Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| C4356CR6-0300 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| C4356CR6-0300 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS2986CR6-0300 | 3/2 Design control — primary reference U.S. Government activity |
| C4356CR6-0300 | 7/2 Vendor item drawing reference U.S. Government activity |
| C4356CR6-0300 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
NSN 5306-01-053-7633 is a Bolt,shoulder, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-053-7633 has 7 manufacturer part numbers on file: VCB0008C6-0-300 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BM4356CR6-0300 (Huck International, Inc), PBF4356CR6-0300 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), SII1058CR6-0300 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 71657CR-6-0300 (Sps Technologies, Llc Dba PB Fasteners) and 2 more.
Key specifications for VCB0008C6-0-300: Head Height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Fastener Length: 0.675 INCHES NOMINAL IN; Shoulder Length: 0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE GRIP. 23 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.