NSN 4730-01-166-1405 · NIIN 011661405 · Part number 803-5001003-X531-86
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 4730-01-166-1405 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-166-1405. Manufacturer of record part number: 803-5001003-X531-86.
Also searched as4730-01-166-1405 ·
4730011661405 ·
NIIN 011661405 ·
01-166-1405 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 803-5001003-X531-86 · 803-5001003
4730-01-166-1405 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Tailpiece,union — FSC 4730
Union Outside Diameter: 3.312 INCHES NOMINAL IN
Nominal Pipe Size Designation: 1.000 INCHES IN
Seat Angle in Deg: 37.0
End Connection Type: BRAZED
Seat Type: ANGLE
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 4730-01-166-1405
NIIN: 011661405
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 803-5001003-X531-86
Manufacturer: Naval Sea Systems Command
General Description
The Tailpiece,union, cataloged under National Stock Number 4730-01-166-1405, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 4730-01-166-1405?
NSN 4730-01-166-1405 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 4730-01-166-1405?
NSN 4730-01-166-1405 has 1 manufacturer part number on file: 803-5001003-X531-86 (Naval Sea Systems Command).
What are the specifications of 803-5001003-X531-86?
Key specifications for 803-5001003-X531-86: Union Outside Diameter: 3.312 INCHES NOMINAL IN; Nominal Pipe Size Designation: 1.000 INCHES IN; Seat Angle in Deg: 37.0; End Connection Type: BRAZED. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-166-1405 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.