The Bolt,machine, cataloged under National Stock Number 5306-01-478-7475, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-478-7475 |
| Primary Part Number | 4322640 PC 33 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Material Document and Classification | MIL-B-857 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 4322648 PC 28 | Naval Sea Systems Command (USA) |
| 4322640 PC 33 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 124-4322640 PC 33 | 3/9 Design control — primary reference Naval Sea Systems Command |
| 5/8-11UNC-2A LG =1-1/2 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 124-4322638 PC 28 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5306-01-478-7475 is a Bolt,machine, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-478-7475 has 2 manufacturer part numbers on file: 4322648 PC 28 (Naval Sea Systems Command), 4322640 PC 33 (Naval Sea Systems Command).
Key specifications for 4322640 PC 33: Fastener Length: 1.500 INCHES NOMINAL IN; Material Document and Classification: MIL-B-857 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 0.625 INCHES IN; Thread Direction: RIGHT-HAND. 8 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.