PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

600-1/2Valve,check

Watts Regulator Company · NSN 4820-01-237-0098 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-237-0098 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-237-0098. Primary manufacturer part number: 600-1/2.
Features
  • Valve,check — FSC 4820
  • 4 verified cross-references
  • Primary manufacturer: Watts Regulator Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-237-0098, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersWatts Regulator Company (CAGE 79227); Fire Combat, Inc. (CAGE 64903)
Technical Specifications
ParameterValue
NSN4820-01-237-0098
Primary Part Number600-1/2
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5110-00-240-7073DWG5110-00-240-7073 INTERCHANGEABLE
Knife,craftsman's
General Services Administration Federal Supply Service
4730-00-289-0292 INTERCHANGEABLE
Coupling,tube
2530-00-383-4819FE681 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4720-00-555-3499 INTERCHANGEABLE
Hose,nonmetallic
4730-00-722-1295 INTERCHANGEABLE
Coupling,tube
4720-00-822-22842583-12 INTERCHANGEABLE
Hose,nonmetallic
Danfoss Power Solutions II, Llc
5940-00-837-0716601 GP 12 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
5998-00-945-1014 INTERCHANGEABLE
Circuit Card Assembly
4730-00-999-537860-1-1-2 INTERCHANGEABLE
Cap,mal,ir0n
Victaulic Company of America Inc Dba Victaulic Company of America
6530-01-344-707160112 INTERCHANGEABLE
Commode Pan,hospital Patient
Activeaid, Llc
Cross-Reference Index
Part NumberManufacturer
601 Watts Regulator Company (USA)
601-1/2 Watts Regulator Company (USA)
600-1/2 PRIMARY Watts Regulator Company (USA)
04978 Fire Combat, Inc. (USA)
Related Parts
5110-00-240-7073INTERCHANGEABLE
KNIFE,CRAFTSMAN'S
DWG5110-00-240-7073
4730-00-289-0292INTERCHANGEABLE
COUPLING,TUBE
2530-00-383-4819INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FE681
4720-00-555-3499INTERCHANGEABLE
HOSE,NONMETALLIC
4730-00-722-1295INTERCHANGEABLE
COUPLING,TUBE
4720-00-822-2284INTERCHANGEABLE
HOSE,NONMETALLIC
2583-12
5940-00-837-0716INTERCHANGEABLE
TERMINAL BOARD
601 GP 12
5998-00-945-1014INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4730-00-999-5378INTERCHANGEABLE
CAP,MAL,IR0N
60-1-1-2
6530-01-344-7071INTERCHANGEABLE
COMMODE PAN,HOSPITAL PATIENT
60112
5950-01-364-1079INTERCHANGEABLE
REACTOR
G454464-1
6840-01-523-9645INTERCHANGEABLE
DISINFECTING KIT
60112

Frequently Asked Questions

What is NSN 4820-01-237-0098?

NSN 4820-01-237-0098 is a Valve,check, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-237-0098?

NSN 4820-01-237-0098 has 4 cross-referenced part numbers: 601 (Watts Regulator Company), 601-1/2 (Watts Regulator Company), 600-1/2 (Watts Regulator Company), 04978 (Fire Combat, Inc.).

What NSN replaces 4820-01-237-0098?

There are 12 known substitutes for 4820-01-237-0098: 5110-00-240-7073, 4730-00-289-0292, 2530-00-383-4819 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com