The Elbow,tube, cataloged under National Stock Number 4730-00-177-0630, 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 Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-177-0630 |
| Primary Part Number | 6874176 |
| Item Name | Elbow,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Surface Treatment Document and Classification | AMS2470 ASSN STD SINGLE TREATMENT RESPONSE OR AMS2471 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Connection Style | FLARED (TUBE) INLET |
| Inlet Location | LEFT-HAND SIDE SINGLE INLET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END BULKHEAD |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Connection Type | THREADED EXTERNAL TUBE INLET |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES INLET IN |
| Leg Length | 1.766 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.453 INCHES MINIMUM AND 1.531 INCHES MAXIMUM INLET IN |
| Leg Length | 2.656 INCHES MINIMUM AND 2.688 INCHES MAXIMUM FIRST END IN |
| Nominal Thread Size | 0.562 INCHES INLET IN |
| Nominal Thread Size | 1.062 INCHES FIRST END BULKHEAD IN |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Seat Angle | 37.0 DEGREES INLET |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Surface Treatment | ANODIZE OVERALL |
| Media for Which Designed | FLUID FIRST RESPONSE |
| Media for Which Designed | OIL SECOND RESPONSE |
| Thread Class | 3A INLET A |
| Thread Class | 3A FIRST END BULKHEAD A |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END BULKHEAD |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | ALUMINUM ALLOY OR ALUMINUM OVERALL |
| Thread Series Designator | UNF INLET |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST END BULKHEAD |
| 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 |
|---|---|
| 6874176 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6874176 | 5/9 Secondary reference Apex Precision Technologies, Inc. |
| 6874176-1 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 4730-00-177-0630 is a Elbow,tube, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-177-0630 has 1 manufacturer part number on file: 6874176 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6874176: Flow Angle: 90.0 DEGREES; Surface Treatment Document and Classification: AMS2470 ASSN STD SINGLE TREATMENT RESPONSE OR AMS2471 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Connection Style: FLARED (TUBE) ALL ENDS; Connection Style: FLARED (TUBE) INLET. 29 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.