The Bolt,shoulder, cataloged under National Stock Number 5306-01-302-2375, 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 25 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-302-2375 |
| Primary Part Number | AIC4356CR8-1690 |
| 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 | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN |
| Fastener Length | 2.128 INCHES NOMINAL IN |
| Shoulder Length | 1.690 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-C-320 TY 2 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE THREADS |
| Shoulder Diameter | 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.438 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 | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.679 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE THREADS |
| Surface Treatment | CHROMIUM GRIP |
| Surface Treatment | CADMIUM AND CHROMATE HEAD |
| 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 | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.935 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 |
|---|---|
| SIT 1058CR8-1690 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| AIC4356CR8-1690 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BM4356CR8-1690 | Huck International, Inc (USA) |
| VCB0008C8-16-90 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 7165CR-8-1690 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF4356CR8-1690 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1913434 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| VS2986CR8-1690 | 5/2 Secondary reference U.S. Government activity |
| C4356CR8-1690 | 7/2 Vendor item drawing reference U.S. Government activity |
| BM4356CR8-1690 | 5/9 Secondary reference U.S. Government activity |
| 5306PL0646050 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-302-2375 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 5306-01-302-2375 has 6 manufacturer part numbers on file: SIT 1058CR8-1690 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), AIC4356CR8-1690 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BM4356CR8-1690 (Huck International, Inc), VCB0008C8-16-90 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 7165CR-8-1690 (Sps Technologies, Llc Dba PB Fasteners) and 1 more.
Key specifications for AIC4356CR8-1690: Head Height: 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM IN; Fastener Length: 2.128 INCHES NOMINAL IN; Shoulder Length: 1.690 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-C-320 TY 2 FED SPEC SINGLE TREATMENT RESPONSE GRIP. 25 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.