PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

404368Trap,steam

Itt Fluid Technology Corp Itt Mcdonnell and Miller · NSN 4730-00-231-3443 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-231-3443 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-231-3443. Primary manufacturer part number: 404368.
Features
  • Trap,steam — FSC 4730
  • 9 verified cross-references
  • Primary manufacturer: Itt Fluid Technology Corp Itt Mcdonnell and Miller
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Trap,steam, cataloged under National Stock Number 4730-00-231-3443, 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 Itt Fluid Technology Corp Itt Mcdonnell and Miller. This item has 9 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameTrap,steam
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersThe Clark-Eliance Corp (CAGE 12665); Itt Fluid Technology Corp Itt Mcdonnell and Miller (CAGE 28960); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Spirax Sarco Inc Dba Spirax Sarco (CAGE 53059); Armstrong International Inc Dba Armstrong Machine Works (CAGE 03933)
Technical Specifications
ParameterValue
NSN4730-00-231-3443
Primary Part Number404368
Item NameTrap,steam
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerItt Fluid Technology Corp Itt Mcdonnell and Miller
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-020-4737120-34 INTERCHANGEABLE
Nut,plain,hexagon
Prestolite Electric Inc
4730-00-142-2160 INTERCHANGEABLE
Trap,steam
3110-00-157-036788606 INTERCHANGEABLE
Bearing,ball,annular
Arrow-Master, Incorporated
4730-00-168-2033404317 INTERCHANGEABLE
Trap,steam
Itt Fluid Technology Corp Itt Mcdonnell and Miller
4730-00-223-3630 INTERCHANGEABLE
Trap,steam
4730-00-223-8038 INTERCHANGEABLE
Trap,steam
4730-00-231-3453215 INTERCHANGEABLE
Trap,steam
Armstrong International Inc Dba Armstrong Machine Works
4730-00-232-800933-20169 INTERCHANGEABLE
Trap,steam
Itt Fluid Technology Corp Itt Mcdonnell and Miller
4730-00-232-8012TYPEAHV-41 INTERCHANGEABLE
Trap,steam
Nicholson Steam Trap Inc
4730-00-232-8023 INTERCHANGEABLE
Trap,steam
Cross-Reference Index
Part NumberManufacturer
121-0-4IN 200 PSI The Clark-Eliance Corp (USA)
404368 PRIMARY Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA)
602B-3-4 250 PSI Itt Fluid Technology Corp Itt Mcdonnell and Miller (USA)
WWT696 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B2-250 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
121 3-4IN 250 PSI The Clark-Eliance Corp (USA)
3-4B1X75 Spirax Sarco Inc Dba Spirax Sarco (USA)
812-3/4 250 PSI PRIMARY Armstrong International Inc Dba Armstrong Machine Works (USA)
120-3-4 Anderson International Corp (USA)
Related Parts
5310-00-020-4737INTERCHANGEABLE
NUT,PLAIN,HEXAGON
120-34
4730-00-142-2160INTERCHANGEABLE
TRAP,STEAM
3110-00-157-0367INTERCHANGEABLE
BEARING,BALL,ANNULAR
88606
4730-00-168-2033INTERCHANGEABLE
TRAP,STEAM
404317
4730-00-223-3630INTERCHANGEABLE
TRAP,STEAM
4730-00-223-8038INTERCHANGEABLE
TRAP,STEAM
4730-00-231-3453INTERCHANGEABLE
TRAP,STEAM
215
4730-00-232-8009INTERCHANGEABLE
TRAP,STEAM
33-20169
4730-00-232-8012INTERCHANGEABLE
TRAP,STEAM
TYPEAHV-41
4730-00-232-8023INTERCHANGEABLE
TRAP,STEAM
5935-00-259-4643INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
8M9T
4730-00-265-1891INTERCHANGEABLE
TRAP,STEAM

Frequently Asked Questions

What is NSN 4730-00-231-3443?

NSN 4730-00-231-3443 is a Trap,steam, manufactured by Itt Fluid Technology Corp Itt Mcdonnell and Miller, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-231-3443?

NSN 4730-00-231-3443 has 9 cross-referenced part numbers: 121-0-4IN 200 PSI (The Clark-Eliance Corp), 404368 (Itt Fluid Technology Corp Itt Mcdonnell and Miller), 602B-3-4 250 PSI (Itt Fluid Technology Corp Itt Mcdonnell and Miller), WWT696 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B2-250 (Spirax Sarco Inc Dba Spirax Sarco) and 4 more.

What NSN replaces 4730-00-231-3443?

There are 12 known substitutes for 4730-00-231-3443: 5310-00-020-4737, 4730-00-142-2160, 3110-00-157-0367 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-231-3443 still in active supply?

NSN 4730-00-231-3443 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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