The Elbow,pipe to Tube, cataloged under National Stock Number 4730-00-078-9773, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-078-9773 |
| Item Name | Elbow,pipe to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | CANCELLED |
| Furnished Items and Quantity | 1 TUBE COUPLING NUT |
| Flow Angle | 90.0 DEGREES |
| Connection Style | PLAIN (TUBE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.125 INCHES FIRST END IN |
| Leg Length | 0.656 INCHES NOMINAL FIRST END IN |
| Leg Length | 0.688 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.125 INCHES SECOND END IN |
| Nominal Thread Size | 0.312 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 2B FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPTF SECOND END |
| Thread Series Designator | UNF FIRST END |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 169HD-2-2 | 3/2 Design control — primary reference U.S. Government activity |
| 10914552 | 5/9 Secondary reference Army Weapons Command Attn Amswe-Ree-S |
| 169HD-02-02 | 3/2 Design control — primary reference U.S. Government activity |
| 4730000789773 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 89LB | 5/9 Secondary reference Imperial |
| 89LB1-8X1-8 | 5/9 Secondary reference Imperial |
| 172832 | 5/9 Secondary reference Komatsu American Intl Co |
| 206684 | 5/9 Secondary reference Hercules Engine Co Inc |
| 89-LB-02X02 | 3/9 Design control — primary reference Imperial |
NSN 4730-00-078-9773 is a Elbow,pipe to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: cancelled.
2 possible matches (shared part number, not a government interchangeability claim): 5330-00-848-4815, 4730-01-276-9632. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-078-9773: Furnished Items and Quantity: 1 TUBE COUPLING NUT; Flow Angle: 90.0 DEGREES; Connection Style: PLAIN (TUBE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END. 14 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.
NSN 4730-00-078-9773 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.