PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N-100 1/2 IN STWYTrap,steam

Spirax Sarco Inc Dba Spirax Sarco · NSN 4730-01-142-1786 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-142-1786 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-142-1786. Primary manufacturer part number: N-100 1/2 IN STWY.
Features
  • Trap,steam — FSC 4730
  • 6 verified cross-references
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Trap,steam, cataloged under National Stock Number 4730-01-142-1786, 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 Spirax Sarco Inc Dba Spirax Sarco. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 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)
ManufacturersSpirax Sarco Inc Dba Spirax Sarco (CAGE 53059); Sfc Valve Corporation (CAGE 1GZ83); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Bacharach, Inc. (CAGE 05083)
Technical Specifications
ParameterValue
NSN4730-01-142-1786
Primary Part NumberN-100 1/2 IN STWY
Item NameTrap,steam
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
4730-00-032-1517 INTERCHANGEABLE
Trap,steam
4730-00-232-8013 INTERCHANGEABLE
Trap,steam
4730-00-232-8024 INTERCHANGEABLE
Trap,steam
4730-00-256-73011633-37-30PC135 INTERCHANGEABLE
Trap,steam
Spirax Sarco Inc Dba Spirax Sarco
4730-00-289-4616 INTERCHANGEABLE
Trap,steam
4730-00-289-4617 INTERCHANGEABLE
Trap,steam
4730-00-289-4619 INTERCHANGEABLE
Trap,steam
4730-00-935-1593J447-1IN INTERCHANGEABLE
Trap,steam
Spirax Sarco Inc Dba Spirax Sarco
Cross-Reference Index
Part NumberManufacturer
N-100 1/2 IN STWY PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
S-11340 .50IN T Sfc Valve Corporation (USA)
J-447 Spirax Sarco Inc Dba Spirax Sarco (USA)
MIL-T-2118 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
N100-1 0.50IN S Bacharach, Inc. (USA)
N-100 1/2IN STW Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
4730-00-032-1517INTERCHANGEABLE
TRAP,STEAM
4730-00-232-8013INTERCHANGEABLE
TRAP,STEAM
4730-00-232-8024INTERCHANGEABLE
TRAP,STEAM
4730-00-256-7301INTERCHANGEABLE
TRAP,STEAM
1633-37-30PC135
4730-00-289-4616INTERCHANGEABLE
TRAP,STEAM
4730-00-289-4617INTERCHANGEABLE
TRAP,STEAM
4730-00-289-4619INTERCHANGEABLE
TRAP,STEAM
4730-00-935-1593INTERCHANGEABLE
TRAP,STEAM
J447-1IN

Frequently Asked Questions

What is NSN 4730-01-142-1786?

NSN 4730-01-142-1786 is a Trap,steam, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-142-1786?

NSN 4730-01-142-1786 has 6 cross-referenced part numbers: N-100 1/2 IN STWY (Spirax Sarco Inc Dba Spirax Sarco), S-11340 .50IN T (Sfc Valve Corporation), J-447 (Spirax Sarco Inc Dba Spirax Sarco), MIL-T-2118 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), N100-1 0.50IN S (Bacharach, Inc.) and 1 more.

What NSN replaces 4730-01-142-1786?

There are 8 known substitutes for 4730-01-142-1786: 4730-00-032-1517, 4730-00-232-8013, 4730-00-232-8024 and 5 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-01-142-1786 still in active supply?

NSN 4730-01-142-1786 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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