The Reducer Body,tube, cataloged under National Stock Number 4730-00-883-2160, 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 Metadure Parts & Sales, Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-883-2160 |
| Primary Part Number | 103172 |
| Item Name | Reducer Body,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Metadure Parts & Sales, Inc. |
| Status | ACTIVE |
| Second End Seat Angle in Deg | 37.0 |
| First End Seat Angle in Deg | 45.0 |
| Tube Outside Diameter for Which Designed | 0.250 INCHES NOMINAL IN |
| Style Designator | REDUCER BODY |
| Thread Direction | RIGHT-HAND |
| Thread Size | 0.438-20 |
| Screw Thread Series Designator | UNF |
| Surface Treatment | CADMIUM |
| Flange Width | 0.234 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL |
| Flange Outside Diameter | 0.688 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 |
|---|---|
| 103172 PRIMARY | Metadure Parts & Sales, Inc. (USA) |
| 64A100A183 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| A10502 | 3/2 Design control — primary reference U.S. Government activity |
| 64A100A183 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 4730-00-883-2160 is a Reducer Body,tube, manufactured by Metadure Parts & Sales, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-883-2160 has 2 manufacturer part numbers on file: 103172 (Metadure Parts & Sales, Inc.), 64A100A183 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 6610-00-968-6756. Verify interchangeability with system specifications before substitution.
Key specifications for 103172: Second End Seat Angle in Deg: 37.0; First End Seat Angle in Deg: 45.0; Tube Outside Diameter for Which Designed: 0.250 INCHES NOMINAL IN; Style Designator: REDUCER BODY. 12 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.