The Elbow,hose to Boss, cataloged under National Stock Number 4730-01-287-9288, 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 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-287-9288 |
| Item Name | Elbow,hose to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 HOSE SOCKET |
| Flow Angle | 90.0 DEGREES |
| Connection Style | GRIPPING NIPPLE (NOSE) FIRST END |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS SWIVEL) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Outside Diameter Hose Accommodated | 0.906 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Connection Type | THREADED EXTERNAL HOSE GRIPPING FIRST END |
| Leg Length | 1.870 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.710 INCHES NOMINAL FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Surface Treatment | ZINC AND DICHROMATE OVERALL |
| Thread Class | 2A SECOND END A |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF SECOND END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| EA08-10RC90 | 3/9 Design control — primary reference Imperial |
NSN 4730-01-287-9288 is a Elbow,hose to Boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-287-9288: Furnished Items and Quantity: 1 HOSE SOCKET; Flow Angle: 90.0 DEGREES; Connection Style: GRIPPING NIPPLE (NOSE) FIRST END; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS SWIVEL) SECOND END. 15 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.