The Reducer Body,tube, cataloged under National Stock Number 4730-00-491-1276, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-491-1276 |
| Primary Part Number | 2519393 |
| Item Name | Reducer Body,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Second End Seat Angle in Deg | 37.0 |
| First End Seat Angle in Deg | 12.0 |
| Tube Outside Diameter for Which Designed | 0.500 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Style Designator | REDUCER BODY |
| Thread Direction | RIGHT-HAND |
| Thread Size | 0.750-20 |
| Screw Thread Series Designator | UNEF |
| Flange Width | 0.281 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL CORROSION RESISTING |
| Flange Outside Diameter | 1.125 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 |
|---|---|
| 16-8TRBZSS | Parker-Hannifin Corporation Div Instrumentation Products Division (USA) |
| 2519393 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 4730-00-491-1276 is a Reducer Body,tube, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-491-1276 has 2 manufacturer part numbers on file: 16-8TRBZSS (Parker-Hannifin Corporation Div Instrumentation Products Division), 2519393 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 2519393: Second End Seat Angle in Deg: 37.0; First End Seat Angle in Deg: 12.0; Tube Outside Diameter for Which Designed: 0.500 INCHES MINIMUM AND 1.000 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.