The Bolt,shoulder, cataloged under National Stock Number 5306-01-052-9812, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-052-9812 |
| Primary Part Number | C4356-5D1750 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| Status | ACTIVE |
| Head Height | 0.136 INCHES NOMINAL IN |
| Fastener Length | 2.125 INCHES NOMINAL IN |
| Shoulder Length | 1.730 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.312 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.076 INCHES NOMINAL 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 | 0.250 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.435 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.965 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 |
|---|---|
| C4356-5D1750 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| C4356-5D1750 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| C4356-5D1750 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C4356-5D1750 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 71657M-5-1750 | 3/2 Design control — primary reference U.S. Government activity |
| 5306PL1496905 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| C4356-5D1750 | 5/2 Secondary reference U.S. Government activity |
| C4356-5D | 7/2 Vendor item drawing reference U.S. Government activity |
| 71657M-5-1750 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-052-9812 is a Bolt,shoulder, manufactured by Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-052-9812 has 4 manufacturer part numbers on file: C4356-5D1750 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), C4356-5D1750 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), C4356-5D1750 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), C4356-5D1750 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-148-1169. Verify interchangeability with system specifications before substitution.
Key specifications for C4356-5D1750: Head Height: 0.136 INCHES NOMINAL IN; Fastener Length: 2.125 INCHES NOMINAL IN; Shoulder Length: 1.730 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE 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.