The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-735-0591, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Ordnance Parts and Engineering Co. Government technical data includes 23 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-735-0591 |
| Primary Part Number | 7350591 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ordnance Parts and Engineering Co |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Body Style | STEPPED |
| First End Thread Class | 3A A |
| First End Thread Quantity Per Inch | 20 |
| First End Style Designator | PLAIN |
| Second Diameter From Wrenching Feature | 0.365 INCHES NOMINAL IN |
| Concentric Hole Depth | 1.000 INCHES NOMINAL IN |
| Wrenching Feature Height | 0.250 INCHES NOMINAL IN |
| First End Thread Length | 0.688 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | QQ-S-633,COMP C1118 FED SPEC SINGLE MATERIAL RESPONSE |
| Length From Bearing Surface of Wrenching Feature to End of Second Diameter | 0.405 INCHES NOMINAL IN |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.093 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.156 INCHES NOMINAL IN |
| Surface Treatment | COPPER |
| First Radial Fluid Hole Diameter | 0.109 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.813 INCHES NOMINAL IN |
| Material | STEEL |
| First Diameter From Wrenching Feature | 0.434 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.437 INCHES IN |
| 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 |
|---|---|
| 7350591 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 7350591 PRIMARY | Ordnance Parts and Engineering Co (USA) |
| Reference | Meaning |
|---|---|
| FC4818 | 5/9 Secondary reference Federal Mogul Corp Sub Wagner Brake Moog Automotive Div |
| 476099 | 5/9 Secondary reference General Motors Corp |
| 7350591 | 5/9 Secondary reference Holmes G W Co |
| 7350591 | C/1 Advisory reference — outside the item-of-supply concept Danfoss Power Solutions II, Llc |
| 7350591 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 476099 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
| 112-06023 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| F4818 | 5/9 Secondary reference Federal Mogul Corp Sub Wagner Brake Moog Automotive Div |
| 7350591 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 7350591 | 5/9 Secondary reference Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 |
NSN 4730-00-735-0591 is a Bolt,fluid Passage, manufactured by Ordnance Parts and Engineering Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-735-0591 has 2 manufacturer part numbers on file: 7350591 (U S Army Tank Automotive Command Amsta-Im-Mm), 7350591 (Ordnance Parts and Engineering Co).
Key specifications for 7350591: First End Thread Series Designator: UNF; Width Across Flats: 0.625 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Body Style: STEPPED. 23 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.