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NSN 4730-01-470-4203Government record, cited

Reducer Body, Tube4730-01-470-4203

NSN 4730-01-470-4203 · NIIN 014704203 · Part number 6780977
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 4730-01-470-4203 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-470-4203. Manufacturer of record part number: 6780977.
Also searched as  4730-01-470-4203 · 4730014704203 · NIIN 014704203 · 01-470-4203 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 6780977
Nearby stock numbers  ·
Features
  • Reducer Body,tube — FSC 4730
  • Second End Seat Angle in Deg: 15.0
  • First End Seat Angle in Deg: 45.0
  • Tube Outside Diameter for Which Designed: 0.375 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
  • Style Designator: REDUCER BODY
  • Thread Size: 11/16-16
  • Screw Thread Series Designator: UN
  • Flange Width: 0.236 INCHES NOMINAL IN
Identification
  • NSN: 4730-01-470-4203
  • NIIN: 014704203
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6780977
  • Manufacturer: Naval Sea Systems Command
General Description

The Reducer Body,tube, cataloged under National Stock Number 4730-01-470-4203, 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 10 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.

Technical Specifications
ParameterValue
NSN4730-01-470-4203
Primary Part Number6780977
Item NameReducer Body,tube
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNaval Sea Systems Command
StatusACTIVE
Second End Seat Angle in Deg15.0
First End Seat Angle in Deg45.0
Tube Outside Diameter for Which Designed0.375 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Style DesignatorREDUCER BODY
Thread Size11/16-16
Screw Thread Series DesignatorUN
Flange Width0.236 INCHES NOMINAL IN
Thread Class2A A
MaterialSTEEL COMP 304 AND STEEL COMP 316
Flange Outside Diameter0.923 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
6780977 PRIMARY Naval Sea Systems Command (USA)
No interchangeability data on file.
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 4730-01-470-4203?

NSN 4730-01-470-4203 is a Reducer Body,tube, 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 4730-01-470-4203?

NSN 4730-01-470-4203 has 1 manufacturer part number on file: 6780977 (Naval Sea Systems Command).

What are the specifications of 6780977?

Key specifications for 6780977: Second End Seat Angle in Deg: 15.0; First End Seat Angle in Deg: 45.0; Tube Outside Diameter for Which Designed: 0.375 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Style Designator: REDUCER BODY. 10 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-470-4203 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.
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