The Tailpiece,union, cataloged under National Stock Number 4730-01-103-0283, 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 Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-103-0283 |
| Primary Part Number | B-35878 |
| Item Name | Tailpiece,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Corporation Dba Eaton Inoac Div Eaton |
| Status | ACTIVE |
| Union Outside Diameter | 1.375 INCHES NOMINAL IN |
| Nominal Pipe Size Designation | 0.500 INCHES IN |
| Flange Thickness | 0.312 INCHES NOMINAL IN |
| End Connection Type | WELDED |
| Seat Type | GASKET |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 316L OR STEEL COMP 316 |
| Flange Outside Diameter | 1.625 INCHES NOMINAL IN |
| Working Pressure and Service Type | 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS AND 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL LBS |
| 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 |
|---|---|
| B-35878 PRIMARY | Eaton Corporation Dba Eaton Inoac Div Eaton (USA) |
NSN 4730-01-103-0283 is a Tailpiece,union, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-103-0283 has 1 manufacturer part number on file: B-35878 (Eaton Corporation Dba Eaton Inoac Div Eaton).
Key specifications for B-35878: Union Outside Diameter: 1.375 INCHES NOMINAL IN; Nominal Pipe Size Designation: 0.500 INCHES IN; Flange Thickness: 0.312 INCHES NOMINAL IN; End Connection Type: WELDED. 9 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.