The Bolt,fluid Passage, cataloged under National Stock Number 4730-01-323-3248, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-323-3248 |
| Primary Part Number | 70106-28012-105 |
| Item Name | Bolt,fluid Passage |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| First End Thread Series Designator | UNF |
| Width Across Flats | 0.500 INCHES NOMINAL IN |
| First End Thread Direction | RIGHT-HAND |
| Body Style | PLAIN |
| First End Thread Class | 3A A |
| First End Style Designator | FLARELESS |
| Wrenching Feature Height | 0.300 INCHES NOMINAL IN |
| First End Thread Length | 0.260 INCHES NOMINAL IN |
| Wrenching Feature Style | HEXAGON |
| Length From Bearing Surface of Wrenching Feature to Bolt End | 0.400 INCHES NOMINAL IN |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Concentric Hole Diameter | 0.220 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| First Radial Fluid Hole Diameter | 0.140 INCHES NOMINAL IN |
| Material | STEEL COMP 17-4PH |
| Distance From Second Radial Hole Center to End of Bolt | 0.260 INCHES NOMINAL IN |
| First End Nominal Thread Size | 0.312 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 |
|---|---|
| 70106-28012-105 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 70106-28012 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 4730-01-323-3248 is a Bolt,fluid Passage, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-323-3248 has 1 manufacturer part number on file: 70106-28012-105 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70106-28012-105: First End Thread Series Designator: UNF; Width Across Flats: 0.500 INCHES NOMINAL IN; First End Thread Direction: RIGHT-HAND; Body Style: PLAIN. 16 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.