PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B135-3-4Valve,gate

Stockham Valves and Fittings Inc · NSN 4820-00-554-8714 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-554-8714 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-554-8714. Primary manufacturer part number: B135-3-4.
Features
  • Valve,gate — FSC 4820
  • Material Document and Classification: ASTM B584 ALLOY C87500 ASSN STD SINGLE MATERIAL RESPONSE STEM
  • Features Provided: BONNET PACKING
  • Material: COPPER ALLOY 922 BODY
  • Inlet Relationship with Outlet: IDENTICAL
  • Maximum Operating Temp and Media for Which Designed: 550.0 FAHRENHEIT STEAM DEGF
  • Nominal Thread Size: 0.750 INCHES IN
  • Pressure Class: ERR-060
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Body construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-00-554-8714, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Stockham Valves and Fittings Inc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-554-8714
Primary Part NumberB135-3-4
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerStockham Valves and Fittings Inc
StatusCANCELLED
Material Document and ClassificationASTM B584 ALLOY C87500 ASSN STD SINGLE MATERIAL RESPONSE STEM
Features ProvidedBONNET PACKING
MaterialCOPPER ALLOY 922 BODY
Inlet Relationship with OutletIDENTICAL
Maximum Operating Temp and Media for Which Designed550.0 FAHRENHEIT STEAM DEGF
Nominal Thread Size0.750 INCHES IN
Pressure ClassERR-060
Operating Pressure and Type200.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
Stem TypeNONRISING
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
Thread Series DesignatorNPT
Specification/standard Data59646-MSS SP-80 MANUFACTURERS STANDARD
Nondefinitive Spec/std Data2 TYPE AND 1 STYLE AND 3 CLASS AND 3/4 SIZE
Departure From Cited DocumentAS MODIFIED BY SEAT RING MATERIAL
Valve Operation MethodMANUAL
Valve Size0.750 INCHES IN
Bonnet TypeOUTSIDE SCREW-YOKE
Connection TypeTHREADED INTERNAL PIPE
Bonnet Attachment MethodTHREADED
MaterialCOPPER ALLOY STEM
MaterialCOPPER ALLOY 922 DISK
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE DISK
MaterialCOPPER ALLOY 922 SEAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-053-3554B13534 INTERCHANGEABLE
Standoff,threaded,spacing
Drs C3 & Aviation Company Dba Drs Data & Imaging Systems
5950-00-245-088242434 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
3110-00-278-7332 INTERCHANGEABLE
Bearing,ball,annular
3010-00-528-0792 INTERCHANGEABLE
Insert,flexible Coupling
4820-00-585-7020M15129 INTERCHANGEABLE
Valve,globe
Mueller Brass Co.
5940-00-852-1530B132 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5305-00-974-922176834 INTERCHANGEABLE
Screw
Telemechanics Inc
5962-01-089-782642434 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
5330-01-230-0981B-1-32 INTERCHANGEABLE
Ring,wiper
Wesley International Llc Dba Wesley International Corp
4720-01-389-338611-5334 INTERCHANGEABLE
Hose,nonmetallic
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
F1G404-3-4 Lunkenheimer Co (USA)
1153 .75IN Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
B135-3-4 PRIMARY Stockham Valves and Fittings Inc (USA)
768-3-4 Lunkenheimer Co (USA)
424 3-4 PRIMARY Crane Co Div Valve Div (USA)
1174 3-4IN Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
458 Crane Co Div Valve Div (USA)
B-135 3/4IN. PRIMARY Stockham Valves and Fittings Inc (USA)
706 Conbraco Industries Inc R-P and C Valve Div (USA)
MSS SP-80 Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA)
1153-3/4 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
B132 Stockham Valves and Fittings Inc (USA)
WWV54 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5340-00-053-3554INTERCHANGEABLE
STANDOFF,THREADED,SPACING
B13534
5950-00-245-0882INTERCHANGEABLE
TRANSFORMER,POWER
42434
3110-00-278-7332INTERCHANGEABLE
BEARING,BALL,ANNULAR
3010-00-528-0792INTERCHANGEABLE
INSERT,FLEXIBLE COUPLING
4820-00-585-7020INTERCHANGEABLE
VALVE,GLOBE
M15129
5940-00-852-1530INTERCHANGEABLE
TERMINAL,LUG
B132
5305-00-974-9221INTERCHANGEABLE
SCREW
76834
5962-01-089-7826INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42434
5330-01-230-0981INTERCHANGEABLE
RING,WIPER
B-1-32
4720-01-389-3386INTERCHANGEABLE
HOSE,NONMETALLIC
11-5334
2940-01-393-7771INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42434
4720-01-628-4553INTERCHANGEABLE
HOSE ASSEMBLY SET,NONMETALLIC

Frequently Asked Questions

What is NSN 4820-00-554-8714?

NSN 4820-00-554-8714 is a Valve,gate, manufactured by Stockham Valves and Fittings Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-554-8714?

NSN 4820-00-554-8714 has 13 cross-referenced part numbers: F1G404-3-4 (Lunkenheimer Co), 1153 .75IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), B135-3-4 (Stockham Valves and Fittings Inc), 768-3-4 (Lunkenheimer Co), 424 3-4 (Crane Co Div Valve Div) and 8 more.

What NSN replaces 4820-00-554-8714?

There are 12 known substitutes for 4820-00-554-8714: 5340-00-053-3554, 5950-00-245-0882, 3110-00-278-7332 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B135-3-4?

Key specifications for B135-3-4: Material Document and Classification: ASTM B584 ALLOY C87500 ASSN STD SINGLE MATERIAL RESPONSE STEM; Features Provided: BONNET PACKING; Material: COPPER ALLOY 922 BODY; Inlet Relationship with Outlet: IDENTICAL. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-554-8714 still in active supply?

NSN 4820-00-554-8714 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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