PartsTable TECHNICAL DATA SHEET
NSN 4730-01-481-5403Government record, cited

Reducer, Pipe4730-01-481-5403

NSN 4730-01-481-5403 · NIIN 014815403 · Part number 863-000353
Guild Associates Inc · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 4X630
Government record, cited
NSN 4730-01-481-5403 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-481-5403. Manufacturer of record part number: 863-000353.
Also searched as  4730-01-481-5403 · 4730014815403 · NIIN 014815403 · 01-481-5403 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 4X630 · 863-000353 · 4429K421 · 1512550
Nearby stock numbers  ·
Features
  • Reducer,pipe — FSC 4730
  • Coupling Flange Shape: HEXAGON
  • Nominal Overall Length: 0.75 INCHES IN
  • Style Designator: PIPE THREAD REDUCER,THREADED EXTERNAL ONE END,THREADED INTERNAL OTHER END, W/HEX NUT FOR WRENCHING
  • Operating Pressure: 3200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • 3 manufacturer part numbers on file
  • Manufacturer of record: Guild Associates Inc
Identification
  • NSN: 4730-01-481-5403
  • NIIN: 014815403
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 863-000353
  • Manufacturer: Guild Associates Inc
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-481-5403, 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 Guild Associates Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-481-5403
Primary Part Number863-000353
Item NameReducer,pipe
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerGuild Associates Inc
StatusACTIVE
Coupling Flange ShapeHEXAGON
Nominal Overall Length0.75 INCHES IN
Style DesignatorPIPE THREAD REDUCER,THREADED EXTERNAL ONE END,THREADED INTERNAL OTHER END, W/HEX NUT FOR WRENCHING
Operating Pressure3200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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
4429K421 Mcmaster-Carr Supply Co (USA)
863-000353 PRIMARY Guild Associates Inc (USA)
1512550 Oshkosh Defense Llc (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 4730-01-481-5403?

NSN 4730-01-481-5403 is a Reducer,pipe, manufactured by Guild Associates Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-481-5403?

NSN 4730-01-481-5403 has 3 manufacturer part numbers on file: 4429K421 (Mcmaster-Carr Supply Co), 863-000353 (Guild Associates Inc), 1512550 (Oshkosh Defense Llc).

What are the specifications of 863-000353?

Key specifications for 863-000353: Coupling Flange Shape: HEXAGON; Nominal Overall Length: 0.75 INCHES IN; Style Designator: PIPE THREAD REDUCER,THREADED EXTERNAL ONE END,THREADED INTERNAL OTHER END, W/HEX NUT FOR WRENCHING; Operating Pressure: 3200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-481-5403 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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