The Reducer Body,tube, cataloged under National Stock Number 4730-01-116-1658, 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 Tube Fittings Division. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-116-1658 |
| Primary Part Number | 0603-10-4 |
| Item Name | Reducer Body,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Second End Seat Angle in Deg | 37.0 |
| First End Seat Angle in Deg | 37.0 |
| Tube Outside Diameter for Which Designed | 0.250 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Style Designator | REDUCER BODY |
| Thread Direction | RIGHT-HAND |
| Thread Size | 0.438-20 |
| Screw Thread Series Designator | UNF |
| Flange Width | 0.225 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL |
| Flange Outside Diameter | 0.690 INCHES NOMINAL IN |
| 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 |
|---|---|
| 0603-10-4 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 10-4TRTXS | 5/9 Secondary reference U.S. Government activity |
| 0603-10-4 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-116-1658 is a Reducer Body,tube, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-116-1658 has 1 manufacturer part number on file: 0603-10-4 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-270-7793. Verify interchangeability with system specifications before substitution.
Key specifications for 0603-10-4: Second End Seat Angle in Deg: 37.0; First End Seat Angle in Deg: 37.0; Tube Outside Diameter for Which Designed: 0.250 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Style Designator: REDUCER BODY. 11 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.