The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-077-1145, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-077-1145 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 0.875 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 1.080 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN |
| First End Thread Quantity Per Inch | 20 |
| Concentric Hole Depth | 1.080 INCHES MINIMUM AND 1.101 INCHES MAXIMUM IN |
| Wrenching Feature Height | 0.140 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| First End Thread Length | 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | AMS5626,COND C4 ASSN STD SINGLE MATERIAL RESPONSE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.380 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.123 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.061 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Distance From First Radial Hole Center to End of Bolt | 1.270 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Material | STEEL |
| Second Radial Fluid Hole Diameter | 0.061 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN |
| Distance From Second Radial Hole Center to End of Bolt | 0.670 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| First Diameter From Wrenching Feature | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| First End Nominal Thread Size | 0.500 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 |
| Reference | Meaning |
|---|---|
| 3W34969-109 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-077-1145 is a Bolt,fluid Passage, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-077-1145: First End Thread Series Designator: UNF; Width Across Flats: 0.875 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 1.080 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN. 24 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.