The Bolt,machine, cataloged under National Stock Number 5306-00-143-2803, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Electric Company. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-143-2803 |
| Primary Part Number | R544P09U |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Fastener Length | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Thread Length | 0.669 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Material Document and Classification | A-5 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 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 |
|---|---|
| R544P09U PRIMARY | General Electric Company (USA) |
NSN 5306-00-143-2803 is a Bolt,machine, manufactured by General Electric Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-143-2803 has 1 manufacturer part number on file: R544P09U (General Electric Company).
Key specifications for R544P09U: Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN; Fastener Length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Thread Length: 0.669 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN. 14 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.