PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-235 SZ 3/4INValve,globe

Nibco Inc Chemtrol Div · NSN 4820-00-855-4561 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-855-4561 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-855-4561. Primary manufacturer part number: S-235 SZ 3/4IN.
Features
  • Valve,globe — FSC 4820
  • Material: COPPER ALLOY 836 BODY
  • Maximum Operating Temp: 406.0 FAHRENHEIT FIRST RESPONSE DEGF
  • Material: COPPER ALLOY 836 SEAT
  • Maximum Operating Temp: 250.0 FAHRENHEIT SECOND RESPONSE DEGF
  • Material Document and Classification: QQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Connection Style: SOCKET (TUBE) ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 836 Body construction
General Description

The Valve,globe, cataloged under National Stock Number 4820-00-855-4561, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Nibco Inc Chemtrol Div. Government technical data includes 22 verified specifications, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-855-4561
Primary Part NumberS-235 SZ 3/4IN
Item NameValve,globe
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNibco Inc Chemtrol Div
StatusCANCELLED
MaterialCOPPER ALLOY 836 BODY
Maximum Operating Temp406.0 FAHRENHEIT FIRST RESPONSE DEGF
MaterialCOPPER ALLOY 836 SEAT
Maximum Operating Temp250.0 FAHRENHEIT SECOND RESPONSE DEGF
Material Document and ClassificationQQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE BODY
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Connection StyleSOCKET (TUBE) ALL ENDS
Valve Operation MethodMANUAL
Features ProvidedBONNET PACKING
Nominal Outside Diameter Tube Accommodated0.500 INCHES ALL ENDS IN
Bonnet Attachment MethodUNION
MaterialNICKEL ALLOY STEM
Bonnet TypeINSIDE SCREW
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MaterialCOPPER ALLOY 836 AND RUBBER SYNTHETIC FLOW CONTROL DEVICE
Operating Pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Flow Control DeviceDISK
Material Document and ClassificationQQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE SEAT
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Style DesignatorSTRAIGHT THRU
Material Document and ClassificationQQ-C-390,ALLOY B5 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Media for Which DesignedSTEAM SINGLE RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-156-1896 INTERCHANGEABLE
Bearing,ball,thrust
7310-01-070-0195S-2-3-5 INTERCHANGEABLE
Anchor Receptacle,baffle Plate,f
Valad Electric Heating Corp.
8040-01-078-0737 INTERCHANGEABLE
Adhesive
5310-01-101-41675043M57P02 INTERCHANGEABLE
Nut,self-Locking,plate
General Electric Company
3460-01-353-8097S-235 INTERCHANGEABLE
Sleeve,expansion Mandrel
Sunnen Products Co
5360-01-366-4803606 P/N S2-35 INTERCHANGEABLE
Spring,helical,compression
Impco Carburetion Inc Fluid Products Div
Cross-Reference Index
Part NumberManufacturer
S-235 SZ 3/4 IN Nibco Inc (USA)
S-235 SZ 3/4IN PRIMARY Nibco Inc Chemtrol Div (USA)
S235 Nibco Inc (USA)
Related Parts
3110-00-156-1896INTERCHANGEABLE
BEARING,BALL,THRUST
7310-01-070-0195INTERCHANGEABLE
ANCHOR RECEPTACLE,BAFFLE PLATE,F
S-2-3-5
8040-01-078-0737INTERCHANGEABLE
ADHESIVE
5310-01-101-4167INTERCHANGEABLE
NUT,SELF-LOCKING,PLATE
5043M57P02
3460-01-353-8097INTERCHANGEABLE
SLEEVE,EXPANSION MANDREL
S-235
5360-01-366-4803INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
606 P/N S2-35

Frequently Asked Questions

What is NSN 4820-00-855-4561?

NSN 4820-00-855-4561 is a Valve,globe, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-855-4561?

NSN 4820-00-855-4561 has 3 cross-referenced part numbers: S-235 SZ 3/4 IN (Nibco Inc), S-235 SZ 3/4IN (Nibco Inc Chemtrol Div), S235 (Nibco Inc).

What NSN replaces 4820-00-855-4561?

There are 6 known substitutes for 4820-00-855-4561: 3110-00-156-1896, 7310-01-070-0195, 8040-01-078-0737 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S-235 SZ 3/4IN?

Key specifications for S-235 SZ 3/4IN: Material: COPPER ALLOY 836 BODY; Maximum Operating Temp: 406.0 FAHRENHEIT FIRST RESPONSE DEGF; Material: COPPER ALLOY 836 SEAT; Maximum Operating Temp: 250.0 FAHRENHEIT SECOND RESPONSE DEGF. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-855-4561 still in active supply?

NSN 4820-00-855-4561 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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