The Bolt,shoulder, cataloged under National Stock Number 5306-01-108-2238, 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 19 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-108-2238 |
| Primary Part Number | AIC4356N6D0950 |
| 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 | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN |
| Fastener Length | 1.305 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN |
| Shoulder Length | 0.940 INCHES MINIMUM AND 0.960 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| 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 | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.155 INCHES MINIMUM AND 1.175 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 |
|---|---|
| C4356N6D0950 | Jensen Rolf and Associates (USA) |
| AIC4356N6D0950 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C4356N6D0950 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| C4356N6D0950 | Huck International, Inc (USA) |
| C4356N6D0950 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| C4356N6D0950 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| C4356N6D0950 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| C4356N6D0950 | 7/2 Vendor item drawing reference U.S. Government activity |
| C4356N6D0950 | 5/9 Secondary reference Howmet Global Fastening Systems Inc Div City of Industry Operations |
| 5306PL1497775 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C4356N6D0950 | 5/2 Secondary reference U.S. Government activity |
| C4356N6D0950 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| C4356N6D0950 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-108-2238 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 5306-01-108-2238 has 7 manufacturer part numbers on file: C4356N6D0950 (Jensen Rolf and Associates), AIC4356N6D0950 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), C4356N6D0950 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), C4356N6D0950 (Huck International, Inc), C4356N6D0950 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
Key specifications for AIC4356N6D0950: Head Height: 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Fastener Length: 1.305 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN; Shoulder Length: 0.940 INCHES MINIMUM AND 0.960 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 19 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.