The Reducer,tube, cataloged under National Stock Number 4730-01-242-5359, 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14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-242-5359 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | FLARED (TUBE) SECOND END |
| Connection Style | SOCKET (TUBE) FIRST END |
| Nominal Overall Length | 2.210 INCHES IN |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Connection Type | THREADED EXTERNAL TUBE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Seat Angle | 45.0 DEGREES SECOND END |
| Media for Which Designed | REFRIGERATION COMPOUND SINGLE RESPONSE |
| Thread Class | 2A SECOND END A |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF SECOND END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 40420 | 3/9 Design control — primary reference Spx Corporation Dba O T C Tool & Equip Division Div Spx Corp - Kent-Moore/otc Divisons Dba Use CAGE Code 3e2t9 for Cataloging |
NSN 4730-01-242-5359 is a Reducer,tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 6515-01-451-1358, 1560-01-509-3215, 3431-01-683-7363. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-242-5359: Connection Style: FLARED (TUBE) SECOND END; Connection Style: SOCKET (TUBE) FIRST END; Nominal Overall Length: 2.210 INCHES IN; Connection Type: UNTHREADED INTERNAL TUBE FIRST 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.
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.