The Reducer,tube, cataloged under National Stock Number 4730-01-186-6003, 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 Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-186-6003 |
| Primary Part Number | R45280T-1012 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
| Status | ACTIVE |
| Connection Style | SWIVEL NUT INVERTED FLARE (TUBE) ALL ENDS |
| Nominal Overall Length | 1.031 INCHES IN |
| Connection Type | THREADED INTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.625 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES SECOND END IN |
| Nominal Thread Size | 1.000 INCHES FIRST END IN |
| Nominal Thread Size | 0.844 INCHES SECOND END IN |
| Seat Angle | 8.5 DEGREES ALL ENDS |
| Thread Class | 3B ALL ENDS |
| Thread Quantity Per Inch | 16 FIRST END |
| Thread Quantity Per Inch | 18 SECOND END |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNJS SECOND END |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) FIRST 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 |
| Part Number | Manufacturer |
|---|---|
| R45280T-1012 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division (USA) |
| Reference | Meaning |
|---|---|
| R45280 | D/9 Drawing number reference only Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division |
NSN 4730-01-186-6003 is a Reducer,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-186-6003 has 1 manufacturer part number on file: R45280T-1012 (Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-206-8475. Verify interchangeability with system specifications before substitution.
Key specifications for R45280T-1012: Connection Style: SWIVEL NUT INVERTED FLARE (TUBE) ALL ENDS; Nominal Overall Length: 1.031 INCHES IN; Connection Type: THREADED INTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.625 INCHES FIRST END IN. 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.