The Elbow,tube to Boss, cataloged under National Stock Number 4730-00-516-2840, 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 Rolls-Royce Corporation. Government technical data includes 26 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-516-2840 |
| Primary Part Number | 6735878 |
| Item Name | Elbow,tube to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Connection Style | FLARED (TUBE) INLET |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Style | DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END |
| Inlet Location | LOW HEEL SINGLE INLET |
| Connection Type | THREADED EXTERNAL TUBE INLET |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES INLET IN |
| Nominal Outside Diameter Tube Accommodated | UNABLE TO DECODE |
| Leg Length | 1.375 INCHES NOMINAL THIRD END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Nominal Thread Size | 0.875 INCHES INLET IN |
| Seat Angle | 37.0 DEGREES INLET |
| Seat Angle | 45.0 DEGREES FIRST END |
| Surface Treatment | ANODIZE OVERALL |
| Surface Treatment | UNABLE TO DECODE |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A INLET A |
| Thread Class | 3A SECOND END A |
| Material | UNABLE TO DECODE |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNF INLET |
| 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 |
|---|---|
| 6735878 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 4730PL1952212 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 6735878 | 5/9 Secondary reference General Motors Corp |
| 6735878 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 4730-00-516-2840 is a Elbow,tube to Boss, manufactured by Rolls-Royce Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-516-2840 has 1 manufacturer part number on file: 6735878 (Rolls-Royce Corporation).
Key specifications for 6735878: Flow Angle: 90.0 DEGREES; Connection Style: FLARED (TUBE) INLET; Connection Style: FLARED (TUBE) FIRST END; Connection Style: DOUBLE THREADED SECTION W/ GASKET AND LOCKNUT SEALING (BOSS) SECOND END. 26 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.