PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WWP401Reducer,soil Pipe

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 4730-00-278-6351 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-278-6351 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-278-6351. Primary manufacturer part number: WWP401.
Features
  • Reducer,soil Pipe — FSC 4730
  • Material: IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101
  • Nondefinitive Spec/std Data: SV CLASS
  • Wall Thickness Designation: SERVICE WEIGHT
  • 2 verified cross-references
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Cast Uns F11401 or Iron Cast Uns F11701 or Iron Cast Uns F12101 or Iron Cast Uns F12401 or Iron Cast Uns F12801 or Iron Cast Uns F13101 or Iron Cast Uns F13501 or Iron Cast Uns F13801 or Iron Cast Uns F14101 construction
General Description

The Reducer,soil Pipe, cataloged under National Stock Number 4730-00-278-6351, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-278-6351
Primary Part NumberWWP401
Item NameReducer,soil Pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
MaterialIRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101
Nondefinitive Spec/std DataSV CLASS
Wall Thickness DesignationSERVICE WEIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4730-00-001-4451 INTERCHANGEABLE
Coupling,pipe
4710-00-163-6934 INTERCHANGEABLE
Pipe,metallic
4730-00-174-6022 INTERCHANGEABLE
Trap,soil Pipe
4730-00-270-3907 INTERCHANGEABLE
Ferrule with Plug,soil Pipe
4730-00-270-3908 INTERCHANGEABLE
Ferrule with Plug,soil Pipe
4710-00-277-4887 INTERCHANGEABLE
Pipe,metallic
4730-00-277-8632 INTERCHANGEABLE
Plug,pipe
4710-00-278-6325 INTERCHANGEABLE
Pipe,metallic
Cross-Reference Index
Part NumberManufacturer
WWP401 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASTM A74 American Society for Testing and Materials Dba Astm International (USA)
Related Parts
4730-00-001-4451INTERCHANGEABLE
COUPLING,PIPE
4710-00-163-6934INTERCHANGEABLE
PIPE,METALLIC
4730-00-174-6022INTERCHANGEABLE
TRAP,SOIL PIPE
4730-00-270-3907INTERCHANGEABLE
FERRULE WITH PLUG,SOIL PIPE
4730-00-270-3908INTERCHANGEABLE
FERRULE WITH PLUG,SOIL PIPE
4710-00-277-4887INTERCHANGEABLE
PIPE,METALLIC
4730-00-277-8632INTERCHANGEABLE
PLUG,PIPE
4710-00-278-6325INTERCHANGEABLE
PIPE,METALLIC

Frequently Asked Questions

What is NSN 4730-00-278-6351?

NSN 4730-00-278-6351 is a Reducer,soil Pipe, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-278-6351?

NSN 4730-00-278-6351 has 2 cross-referenced part numbers: WWP401 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM A74 (American Society for Testing and Materials Dba Astm International).

What NSN replaces 4730-00-278-6351?

There are 8 known substitutes for 4730-00-278-6351: 4730-00-001-4451, 4710-00-163-6934, 4730-00-174-6022 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WWP401?

Key specifications for WWP401: Material: IRON CAST UNS F11401 OR IRON CAST UNS F11701 OR IRON CAST UNS F12101 OR IRON CAST UNS F12401 OR IRON CAST UNS F12801 OR IRON CAST UNS F13101 OR IRON CAST UNS F13501 OR IRON CAST UNS F13801 OR IRON CAST UNS F14101; Nondefinitive Spec/std Data: SV CLASS; Wall Thickness Designation: SERVICE WEIGHT. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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