The Bolt,externally Relieved Body, cataloged under National Stock Number 5306-01-337-2300, 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 20 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-337-2300 |
| Primary Part Number | AIC4356-7D2455 |
| Item Name | Bolt,externally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Fastener Length | 2.893 INCHES MINIMUM AND 2.903 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE THREADS |
| Thread Length | 0.324 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6487 (H-11) ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Diameter From Head | 0.437 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.558 INCHES NOMINAL IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 2.445 INCHES MINIMUM AND 2.465 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CADMIUM HEAD |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| AIC4356-7D2455 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 71657H-7-2455 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| SII 1058-7D2455 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| Reference | Meaning |
|---|---|
| VS2986-7D-2455 | 3/2 Design control — primary reference U.S. Government activity |
| 5306-001-7D2455 | 5/9 Secondary reference Aidc/aerospace Industrial Development Corp. Dba Aidc |
NSN 5306-01-337-2300 is a Bolt,externally Relieved Body, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-337-2300 has 3 manufacturer part numbers on file: AIC4356-7D2455 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 71657H-7-2455 (Sps Technologies, Llc Dba PB Fasteners), SII 1058-7D2455 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries).
Key specifications for AIC4356-7D2455: Head Height: 0.183 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Fastener Length: 2.893 INCHES MINIMUM AND 2.903 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE HEAD; Surface Treatment Document and Classification: NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE THREADS. 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.