The Bolt,shoulder, cataloged under National Stock Number 5306-00-448-7450, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-448-7450 |
| Primary Part Number | AIC4356CR6440 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN |
| Fastener Length | 0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM IN |
| Shoulder Length | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE AND NAS 672 ASSN STD 1ST TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.261 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 47.0 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 |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.645 INCHES MINIMUM AND 0.665 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 |
|---|---|
| PBF4356CR6-440 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC4356CR6440 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VCB0008C6-6-440 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| SII 1058CR6-440 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 71657CR6-6440 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| BM4356CR6-440 | 5/9 Secondary reference U.S. Government activity |
| BM4356CR6-440 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS2986CR6-440 | 5/2 Secondary reference U.S. Government activity |
| C4356CR-0440 | 5/9 Secondary reference Arrow Electronics Inc Arrow/schweber Electronics Group |
| C4356CR6440 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5306-00-448-7450 is a Bolt,shoulder, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-448-7450 has 5 manufacturer part numbers on file: PBF4356CR6-440 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC4356CR6440 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), VCB0008C6-6-440 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), SII 1058CR6-440 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), 71657CR6-6440 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for AIC4356CR6440: Head Height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Fastener Length: 0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM IN; Shoulder Length: 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE AND NAS 672 ASSN STD 1ST 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.