The Elbow,tube to Boss, cataloged under National Stock Number 4730-01-256-7149, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-256-7149 |
| Primary Part Number | 12349975 |
| Item Name | Elbow,tube to Boss |
| 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 | 45.0 DEGREES |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END |
| Inlet Location | LEFT-HAND SIDE SINGLE INLET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | ASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-741 FED SPEC 2ND MATERIAL RESPONSE OR ASTM A47 ASSN STD 3RD MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Operating Pressure | 320.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 1.625 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL COMP 1010 OR STEEL OR IRON CAST OVERALL |
| Thread Series Designator | UN 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 |
|---|---|
| 12349975 | Amz Alabama Inc. (USA) |
| 12349975 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12349975 PRIMARY | B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 12349975 | 5/2 Secondary reference U.S. Government activity |
| 12349975 | 8/1 NATO reproduction reference Fnss Savunma Sistemleri Anonim Sirketi |
NSN 4730-01-256-7149 is a Elbow,tube to Boss, 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 4730-01-256-7149 has 3 manufacturer part numbers on file: 12349975 (Amz Alabama Inc.), 12349975 (U S Army Tank Automotive Command Amsta-Im-Mm), 12349975 (B. & E. Manufacturing Co., Inc. Dba B & E Manufacturing Co Inc).
Key specifications for 12349975: Flow Angle: 45.0 DEGREES; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) FIRST END; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND 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.