PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50152Disk,valve

Spirax Sarco Inc Dba Spirax Sarco · NSN 4820-00-833-7859 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-833-7859 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-833-7859. Primary manufacturer part number: 50152.
Features
  • Disk,valve — FSC 4820
  • Media for Which Designed: STEAM
  • Material: STEEL
  • Style Designator: SOLID
  • Outside Diameter: 1.875 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Spirax Sarco Inc Dba Spirax Sarco
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-833-7859, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-833-7859
Primary Part Number50152
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpirax Sarco Inc Dba Spirax Sarco
StatusACTIVE
Media for Which DesignedSTEAM
MaterialSTEEL
Style DesignatorSOLID
Outside Diameter1.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2930-00-392-50008152B INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
5305-00-433-3739 INTERCHANGEABLE
Screw,externally Relieved Body
5330-00-580-852911907 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
3010-00-821-989050152 INTERCHANGEABLE
Coupling Half,shaft
Waterous Company
1005-00-831-136750152 INTERCHANGEABLE
Pin,hammer Strut
Colt's Manufacturing Company, Llc
3110-01-173-3386 INTERCHANGEABLE
Bearing,ball,annular
5920-01-296-0958 INTERCHANGEABLE
Fuseholder,block
Cross-Reference Index
Part NumberManufacturer
50152 PRIMARY Spirax Sarco Inc Dba Spirax Sarco (USA)
Related Parts
2930-00-392-5000INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8152B
5305-00-433-3739INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
5330-00-580-8529INTERCHANGEABLE
SEAL,PLAIN ENCASED
11907
3010-00-821-9890INTERCHANGEABLE
COUPLING HALF,SHAFT
50152
1005-00-831-1367INTERCHANGEABLE
PIN,HAMMER STRUT
50152
3110-01-173-3386INTERCHANGEABLE
BEARING,BALL,ANNULAR
5920-01-296-0958INTERCHANGEABLE
FUSEHOLDER,BLOCK

Frequently Asked Questions

What is NSN 4820-00-833-7859?

NSN 4820-00-833-7859 is a Disk,valve, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-833-7859?

NSN 4820-00-833-7859 has 1 cross-referenced part number: 50152 (Spirax Sarco Inc Dba Spirax Sarco).

What NSN replaces 4820-00-833-7859?

There are 7 known substitutes for 4820-00-833-7859: 2930-00-392-5000, 5305-00-433-3739, 5330-00-580-8529 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50152?

Key specifications for 50152: Media for Which Designed: STEAM; Overall Height: 0.141 INCHES NOMINAL IN; Material: STEEL; Style Designator: SOLID. 5 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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