The Bolt,machine, cataloged under National Stock Number 5306-00-623-0256, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-623-0256 |
| Primary Part Number | 120B307H01 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 0.380 INCHES NOMINAL IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 120B307H01 | Micro Machining, Inc (USA) |
| 120B307H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 120B307H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5306-00-623-0256 is a Bolt,machine, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-623-0256 has 2 manufacturer part numbers on file: 120B307H01 (Micro Machining, Inc), 120B307H01 (Northrop Grumman Support Services Corp).
Key specifications for 120B307H01: Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 0.380 INCHES NOMINAL IN; Features Provided: FINISHED HEAD; Head Style: HEXAGON. 6 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.