The Bolt,fluid Passage, cataloged under National Stock Number 4730-00-508-8534, 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 Airborne Technologies, Inc.. Government technical data includes 22 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-508-8534 |
| Primary Part Number | 351902 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Airborne Technologies, Inc. |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Length From Bearing Surface of Wrenching Feature to End of First Diameter | 3.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| Cotter Pin Hole Diameter | 0.141 INCHES NOMINAL IN |
| First End Thread Quantity Per Inch | 14 |
| Wrenching Feature Height | 0.160 INCHES NOMINAL IN |
| First End Thread Length | 0.640 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 4.140 INCHES NOMINAL IN |
| Concentric Hole Diameter | 0.500 INCHES NOMINAL IN |
| Distance From Bolt End to Hole Center | 0.202 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Minimum Tensile Strength | 17000 POUNDS PER SQUARE INCH LBS |
| First Radial Fluid Hole Diameter | 0.100 INCHES NOMINAL IN |
| Distance From First Radial Hole Center to End of Bolt | 2.658 INCHES NOMINAL IN |
| Material | STEEL |
| First Diameter From Wrenching Feature | 0.873 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.875 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 |
|---|---|
| 351902 | Airborne Technologies, Inc. (USA) |
| 351902 | Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co (USA) |
| Reference | Meaning |
|---|---|
| 351902 | 5/9 Secondary reference Lockheed Martin Services, Llc |
| 351902 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-508-8534 is a Bolt,fluid Passage, manufactured by Airborne Technologies, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-508-8534 has 2 manufacturer part numbers on file: 351902 (Airborne Technologies, Inc.), 351902 (Aero Engineering & Manufacturing Company of California, Llc Dba Aeroengineering & Manufacturing Co).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-529-6879. Verify interchangeability with system specifications before substitution.
Key specifications for 351902: First End Thread Series Designator: UNF; Width Across Flats: 1.250 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Length From Bearing Surface of Wrenching Feature to End of First Diameter: 3.500 INCHES NOMINAL IN. 22 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.