The Bolt,shoulder, cataloged under National Stock Number 5306-01-052-7624, 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 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-052-7624 |
| Primary Part Number | AIC4356CR4-1850 |
| 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 | 0.125 INCHES NOMINAL IN |
| Fastener Length | 2.173 INCHES NOMINAL IN |
| Shoulder Length | 1.830 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE THREADS |
| Surface Treatment Document and Classification | QQ-C-320 CL 2 FED SPEC SINGLE TREATMENT RESPONSE GRIP |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE HEAD |
| Shoulder Diameter | 0.249 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.270 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.070 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.372 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CHROMIUM GRIP |
| Surface Treatment | CADMIUM HEAD |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.038 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 |
|---|---|
| VCB0008C4-1850 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 71657CR-4-1850 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF4356CR4-1850 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SII 1058CR4-1850 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| AIC4356CR4-1850 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BM4356CR4-1580 | 5/9 Secondary reference Deutsch Fastener Corp |
| 5306PL1496892 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| VS298CC4-1850 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-052-7624 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 5306-01-052-7624 has 5 manufacturer part numbers on file: VCB0008C4-1850 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 71657CR-4-1850 (Sps Technologies, Llc Dba PB Fasteners), PBF4356CR4-1850 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), SII 1058CR4-1850 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), AIC4356CR4-1850 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for AIC4356CR4-1850: Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 2.173 INCHES NOMINAL IN; Shoulder Length: 1.830 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE THREADS. 24 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.