PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61966Control Element,steam Trap

Spirax Sarco Inc Dba Spirax Sarco · NSN 4820-00-174-3090 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-174-3090 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-174-3090. Primary manufacturer part number: 61966.
Features
  • Control Element,steam Trap — FSC 4820
  • General Characteristics Item Description: STAINLESS STEEL HOUSING,CRES NEEDLE VALVE,1.500 IN. OD,2.938 IN. LG,BELLOWS TYPE STEAM CONTROL,USED ON SARCO CO. 3/4-9-125 THERMOSTATIC STEAM TRAPS IN
  • 3 verified cross-references
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Control Element,steam Trap, cataloged under National Stock Number 4820-00-174-3090, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-174-3090
Primary Part Number61966
Item NameControl Element,steam Trap
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusCANCELLED
General Characteristics Item DescriptionSTAINLESS STEEL HOUSING,CRES NEEDLE VALVE,1.500 IN. OD,2.938 IN. LG,BELLOWS TYPE STEAM CONTROL,USED ON SARCO CO. 3/4-9-125 THERMOSTATIC STEAM TRAPS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6605-00-318-5487206-511 INTERCHANGEABLE
Cover,motor Dust
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
2910-00-356-082221152 INTERCHANGEABLE
Lever,carburetor Throttle
Briggs and Stratton Corp
5940-00-900-3755 INTERCHANGEABLE
Terminal,stud
3010-01-300-019661966 INTERCHANGEABLE
Coupling,shaft,rigid
Reidville Hydraulics & Mfg Inc
Cross-Reference Index
Part NumberManufacturer
61966 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
48381 Spirax Sarco Inc Dba Spirax Sarco (USA)
NB73D A. Smith & Son, Inc. (USA)
Related Parts
6605-00-318-5487INTERCHANGEABLE
COVER,MOTOR DUST
206-511
2910-00-356-0822INTERCHANGEABLE
LEVER,CARBURETOR THROTTLE
21152
5940-00-900-3755INTERCHANGEABLE
TERMINAL,STUD
3010-01-300-0196INTERCHANGEABLE
COUPLING,SHAFT,RIGID
61966

Frequently Asked Questions

What is NSN 4820-00-174-3090?

NSN 4820-00-174-3090 is a Control Element,steam Trap, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-174-3090?

NSN 4820-00-174-3090 has 3 cross-referenced part numbers: 61966 (Spirax Sarco Inc Dba Spirax Sarco), 48381 (Spirax Sarco Inc Dba Spirax Sarco), NB73D (A. Smith & Son, Inc.).

What NSN replaces 4820-00-174-3090?

There are 4 known substitutes for 4820-00-174-3090: 6605-00-318-5487, 2910-00-356-0822, 5940-00-900-3755 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61966?

Key specifications for 61966: General Characteristics Item Description: STAINLESS STEEL HOUSING,CRES NEEDLE VALVE,1.500 IN. OD,2.938 IN. LG,BELLOWS TYPE STEAM CONTROL,USED ON SARCO CO. 3/4-9-125 THERMOSTATIC STEAM TRAPS IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-174-3090 still in active supply?

NSN 4820-00-174-3090 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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