The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-866-9977, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-866-9977 |
| Primary Part Number | 471028 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 1.121 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Thread Quantity Per Inch | 18 |
| Second End Nominal Thread Size | 0.210 INCHES IN |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 0.900 INCHES NOMINAL IN |
| Second End Thread Class | 3B |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| First End Thread Quantity Per Inch | 18 |
| First End Style Designator | PLAIN |
| Concentric Hole Depth | 0.890 INCHES NOMINAL IN |
| Second End Seat Angle | 37.0 DEGREES NOMINAL |
| Wrenching Feature Height | 0.190 INCHES NOMINAL IN |
| Second End Thread Series Designator | UNF |
| First End Thread Length | 0.430 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN |
| Wrenching Feature Style | HEXAGON |
| Material Document and Classification | AMS-5640 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | HIGH PRESSURE FLARE |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 1.470 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.300 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.500 INCHES NOMINAL IN |
| First Radial Fluid Hole Diameter | 0.219 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 0.616 INCHES NOMINAL IN |
| Material | STEEL |
| Second End Thread Length | 0.090 INCHES NOMINAL 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 |
|---|---|
| 471028 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 471028 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 4730-00-866-9977 is a Bolt,fluid Passage, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-866-9977 has 1 manufacturer part number on file: 471028 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 471028: First End Thread Series Designator: UNF; Width Across Flats: 1.121 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Second End Thread Quantity Per Inch: 18. 29 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.