The Adapter,straight,pipe to Tube, cataloged under National Stock Number 4730-00-722-1371, 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 Swagelok Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-722-1371 |
| Primary Part Number | B-400-7-4 |
| Item Name | Adapter,straight,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 2 FERRULE SLEEVE AND 1 TUBE COUPLING NUT |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Overall Length | 1.410 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 20.0 DEGREES FIRST END |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 3A FIRST END A |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | UNF 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 |
|---|---|
| B-400-7-4 PRIMARY | Swagelok Co (USA) |
| 4CF4 | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 4 FSC 4N-B | Parker-Hannifin Corporation Div Instrumentation Products Division (USA) |
| CV0181-002 | Northrop Grumman Corp Electronic Systems Defensive System Div (USA) |
| 4-4 GBZ-B | Parker-Hannifin Corporation Div Instrumentation Products Division (USA) |
| 4B-1FC-4 | Tylok International, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 400-7-4 | 5/9 Secondary reference Swagelok Co |
| ASC1338262 | 5/9 Secondary reference Asc Pty Ltd |
| 4-4 GBZ-B | 5/9 Secondary reference Parker Hannifin Corp Stratoflex Div Aircraft Fittings Opn |
| 4CF4 | 5/9 Secondary reference J R Douglass Company |
| 4-4GBZB | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Corporate Headquarters |
| 4-4GBZB | 5/9 Secondary reference A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc |
NSN 4730-00-722-1371 is a Adapter,straight,pipe to Tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-722-1371 has 6 manufacturer part numbers on file: B-400-7-4 (Swagelok Co), 4CF4 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 4 FSC 4N-B (Parker-Hannifin Corporation Div Instrumentation Products Division), CV0181-002 (Northrop Grumman Corp Electronic Systems Defensive System Div), 4-4 GBZ-B (Parker-Hannifin Corporation Div Instrumentation Products Division) and 1 more.
Key specifications for B-400-7-4: Furnished Items and Quantity: 2 FERRULE SLEEVE AND 1 TUBE COUPLING NUT; Connection Style: FLARELESS (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END; Nominal Overall Length: 1.410 INCHES IN. 15 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.