The Elbow,tube, cataloged under National Stock Number 4730-01-171-1937, 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 Cal Fittings Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-171-1937 |
| Primary Part Number | 7M134V06-04 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cal Fittings Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE FIRST END BULKHEAD |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Leg Length | 1.820 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.070 INCHES MINIMUM AND 1.100 INCHES MAXIMUM SECOND END IN |
| Nominal Thread Size | 0.438 INCHES SECOND END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END BULKHEAD IN |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | CHROMATE OVERALL |
| Media for Which Designed | AIR SECOND RESPONSE |
| Media for Which Designed | HYDRAULIC FLUID FIRST RESPONSE |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A ALL ENDS A |
| Material | ALUMINUM ALLOY OR ALUMINUM OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD |
| 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 |
|---|---|
| 7M134V06-04 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| 7M134V06-04 | Nelson Aero Space, Inc. (USA) |
| 7M134V06-04 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| 7M134V06-04 | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| 7M134V06-04 PRIMARY | Cal Fittings Inc (USA) |
| Reference | Meaning |
|---|---|
| 10108855 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 7M134V06-04 | 5/9 Secondary reference Bailey Hose Inc |
| 7M134V06-04 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| 7M134 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 7M134V06-04 | 5/9 Secondary reference United Supply Co Inc |
| 7M134V06-04 | 5/9 Secondary reference The Boeing Company Div Defense |
| 7M134V06-04 | 5/9 Secondary reference Crown Fitting Co Inc |
NSN 4730-01-171-1937 is a Elbow,tube, manufactured by Cal Fittings Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-171-1937 has 5 manufacturer part numbers on file: 7M134V06-04 (Sps Technologies, Llc Dba Airdrome Precision Components), 7M134V06-04 (Nelson Aero Space, Inc.), 7M134V06-04 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), 7M134V06-04 (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply), 7M134V06-04 (Cal Fittings Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-173-4122, 4730-01-192-9579, 4730-01-247-5443. Verify interchangeability with system specifications before substitution.
Key specifications for 7M134V06-04: Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) ALL ENDS; Connection Type: THREADED EXTERNAL TUBE FIRST END BULKHEAD; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 19 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.