The Bolt,machine, cataloged under National Stock Number 5306-01-388-3697, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-388-3697 |
| Primary Part Number | MS9451-22 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OVERALL |
| Head Height | 0.125 INCHES NOMINAL IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS 2461 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.060 INCHES NOMINAL IN |
| Hardness Rating | 42.0 ROCKWELL C NOMINAL AND 46.0 ROCKWELL C MINIMUM OVERALL |
| Material Document and Classification | AMS6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 601 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 |
|---|---|
| MS9451-22 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| MS9451-22 | 5/9 Secondary reference U.S. Government activity |
| MS9451-22 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-01-388-3697 is a Bolt,machine, manufactured by Sae International Dba Sae International, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-388-3697 has 1 manufacturer part number on file: MS9451-22 (Sae International Dba Sae International).
Key specifications for MS9451-22: Surface Finish: 63.0 MICROINCHES OVERALL; Head Height: 0.125 INCHES NOMINAL IN; Fastener Length: 1.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS 2461 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 16 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.