The Elbow,tube, cataloged under National Stock Number 4730-01-184-0971, 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 B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-184-0971 |
| Primary Part Number | 7M148V4 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Leg Length | 0.600 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.891 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | CHROMATE BODY |
| Surface Treatment | ANODIZE NUT |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Material | ALUMINUM ALLOY 2014 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| 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 |
|---|---|
| 7M148V4 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| 7M148V4 PRIMARY | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc (USA) |
| 7M148V4 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 7M148V4 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| 7M148V4 | Nelson Aero Space, Inc. (USA) |
| 7M148V4 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 7M148 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 7M148V4 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| 7M148V4 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 10108894 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-184-0971 is a Elbow,tube, manufactured by B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-184-0971 has 6 manufacturer part numbers on file: 7M148V4 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), 7M148V4 (B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc), 7M148V4 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 7M148V4 (Sps Technologies, Llc Dba Airdrome Precision Components), 7M148V4 (Nelson Aero Space, Inc.) and 1 more.
Key specifications for 7M148V4: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: MIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT; Connection Style: FLARED (TUBE) SECOND END; Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END. 17 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.