NSN 4730-01-092-0028 · NIIN 010920028 · Part number 5020590 ITEM 21
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-092-0028 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-092-0028. Manufacturer of record part number: 5020590 ITEM 21.
Also searched as4730-01-092-0028 ·
4730010920028 ·
NIIN 010920028 ·
01-092-0028 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 5020590 ITEM 21 · 48R-4-304SS
4730-01-092-0028 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Tailpiece,union — FSC 4730
Union Outside Diameter: 1.000 INCHES NOMINAL IN
End Connection Type: WELDED
Seat Type: STRAIGHT FACE
Tubing Outside Diameter: 1.000 INCHES NOMINAL IN
Surface Treatment: PASSIVATE
Material: STEEL COMP 304
Working Pressure and Service Type: 6000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL AIR LBS
Identification
NSN: 4730-01-092-0028
NIIN: 010920028
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 5020590 ITEM 21
Manufacturer: Naval Sea Systems Command
General Description
The Tailpiece,union, cataloged under National Stock Number 4730-01-092-0028, 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 Sea Systems Command. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-092-0028?
NSN 4730-01-092-0028 is a Tailpiece,union, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-092-0028?
NSN 4730-01-092-0028 has 1 manufacturer part number on file: 5020590 ITEM 21 (Naval Sea Systems Command).
What are the specifications of 5020590 ITEM 21?
Key specifications for 5020590 ITEM 21: Union Outside Diameter: 1.000 INCHES NOMINAL IN; End Connection Type: WELDED; Overall Length: 1.125 INCHES NOMINAL IN; Seat Type: STRAIGHT FACE. 7 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-092-0028 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.