The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-274-6978, 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 Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 12 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 | 4730-00-274-6978 |
| Primary Part Number | 170521 |
| Item Name | Adapter,straight,tube to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Style | SOCKET (HOSE) SECOND END |
| Nominal Outside Diameter Hose Accommodated | 0.940 INCHES SECOND END IN |
| Nominal Overall Length | 1.720 INCHES IN |
| Connection Type | UNTHREADED INTERNAL HOSE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.000 INCHES FIRST END IN |
| Nominal Thread Size | 1.188 INCHES FIRST END IN |
| Thread Class | 2A FIRST END A |
| Thread Quantity Per Inch | 16 FIRST END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNS 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 |
|---|---|
| 170521 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 4730-00-274-6978 is a Adapter,straight,tube to Hose, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-274-6978 has 1 manufacturer part number on file: 170521 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 170521: Connection Style: PLAIN (TUBE) FIRST END; Connection Style: SOCKET (HOSE) SECOND END; Nominal Outside Diameter Hose Accommodated: 0.940 INCHES SECOND END IN; Nominal Overall Length: 1.720 INCHES IN. 12 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.