Watts Regulator Company · NSN 4820-01-355-0374 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-355-0374 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-355-0374. Primary manufacturer part number: S8-1/2IN.
4820-01-355-0374 — No Item Name Available illustration
Features
Valve,check — FSC 4820
Material: COPPER ALLOY BODY
Thread Quantity Per Inch: 11-1/2 SECOND END
Connection Type: THREADED INTERNAL HOSE SECOND END
Connection Type: THREADED EXTERNAL HOSE FIRST END
Style Designator: STRAIGHT THRU
Connection Style: PLAIN (HOSE) FIRST END
Mounting Position: HORIZONTAL OR VERTICAL
Applications
Flow control in piping systems
Pressure regulation
Steam and fluid isolation
Applications requiring Copper Alloy Body construction
General Description
The Valve,check, cataloged under National Stock Number 4820-01-355-0374, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-355-0374
Primary Part Number
S8-1/2IN
Item Name
Valve,check
FSC / FSG
4820 / 48 — No Item Name Available
Manufacturer
Watts Regulator Company
Status
ACTIVE
Material
COPPER ALLOY BODY
Thread Quantity Per Inch
11-1/2 SECOND END
Connection Type
THREADED INTERNAL HOSE SECOND END
Connection Type
THREADED EXTERNAL HOSE FIRST END
Style Designator
STRAIGHT THRU
Connection Style
PLAIN (HOSE) FIRST END
Mounting Position
HORIZONTAL OR VERTICAL
Nominal Thread Size
0.500 INCHES SECOND END IN
Valve Operation Method
AUTOMATIC
Thread Series Designator
NH SECOND END
Disk Loading Method
SPRING
Operating Pressure
125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN 4820-01-355-0374 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 4820-01-355-0374?
NSN 4820-01-355-0374 has 2 cross-referenced part numbers: S8-1/2IN (Watts Regulator Company), S8 (Watts Regulator Company).
What NSN replaces 4820-01-355-0374?
There are 12 known substitutes for 4820-01-355-0374: 3110-00-108-9346, 8010-00-133-5414, 6110-00-152-8967 and 9 more. Verify interchangeability with system specifications before substitution.
What are the specifications of S8-1/2IN?
Key specifications for S8-1/2IN: Material: COPPER ALLOY BODY; Thread Quantity Per Inch: 11-1/2 SECOND END; Connection Type: THREADED INTERNAL HOSE SECOND END; Connection Type: THREADED EXTERNAL HOSE FIRST END. 22 total characteristics are documented in the Federal Logistics Information System.
✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.