The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-388-5291, 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 Div Pratt & Whitney. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-388-5291 |
| Primary Part Number | 167905-1 |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Nominal Overall Length | 2.640 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| 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 |
|---|---|
| 167905-1 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
NSN 4730-01-388-5291 is a Adapter,straight,tube to Boss, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-388-5291 has 1 manufacturer part number on file: 167905-1 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 167905-1: Nominal Overall Length: 2.640 INCHES IN; Connection Type: THREADED EXTERNAL TUBE FIRST END; Nominal Outside Diameter Tube Accommodated: 0.500 INCHES FIRST END IN; Nominal Thread Size: 0.750 INCHES FIRST END IN. 8 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.