The Bolt,shoulder, cataloged under National Stock Number 5306-01-197-6338, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-197-6338 |
| Primary Part Number | AIC4356CR6-2956 |
| 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 | 3.321 INCHES MINIMUM AND 3.341 INCHES MAXIMUM IN |
| Shoulder Length | 2.946 INCHES MINIMUM AND 2.966 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE THREADS |
| Surface Treatment Document and Classification | QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| Shoulder Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM 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 | CHROMIUM GRIP |
| Surface Treatment | CADMIUM OR NICKEL AND CADMIUM HEAD |
| Surface Treatment | CADMIUM OR NICKEL AND CADMIUM THREADS |
| 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 | 3.151 INCHES MINIMUM AND 3.191 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 |
|---|---|
| SII 1058CR6-2956 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| C4356CR6-2956 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF4356CR6-2956 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCB0008C6-2-956 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC4356CR6-2956 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SF115CR6 | Saturn Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| VS2986CR6-2956 | 5/2 Secondary reference U.S. Government activity |
| C4356CR6-2956 | 7/2 Vendor item drawing reference U.S. Government activity |
| 5306PL1498286 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-197-6338 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 5306-01-197-6338 has 6 manufacturer part numbers on file: SII 1058CR6-2956 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), C4356CR6-2956 (Sps Technologies, Llc Dba PB Fasteners), PBF4356CR6-2956 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VCB0008C6-2-956 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), AIC4356CR6-2956 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for AIC4356CR6-2956: Head Height: 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM IN; Fastener Length: 3.321 INCHES MINIMUM AND 3.341 INCHES MAXIMUM IN; Shoulder Length: 2.946 INCHES MINIMUM AND 2.966 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: NAS 672 ASSN STD 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OR AMS 2416 ASSN STD 2ND TREATMENT RESPONSE HEAD. 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.