PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SP143Valve,check

Henry Technologies, Inc. · NSN 4820-01-031-9967 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-031-9967 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-031-9967. Primary manufacturer part number: SP143.
Features
  • Valve,check — FSC 4820
  • Material: COPPER ALLOY BODY
  • Media for Which Designed: REFRIGERANT, HALOGENATED SINGLE RESPONSE
  • Valve Operation Method: AUTOMATIC
  • Connection Style: FLARED (TUBE) ALL ENDS
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Seat Angle: 37.0 DEGREES ALL ENDS
  • Material: COPPER ALLOY FLOW CONTROL DEVICE
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 4820-01-031-9967, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Henry Technologies, Inc.. Government technical data includes 18 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
ParameterValue
NSN4820-01-031-9967
Primary Part NumberSP143
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHenry Technologies, Inc.
StatusACTIVE
MaterialCOPPER ALLOY BODY
Media for Which DesignedREFRIGERANT, HALOGENATED SINGLE RESPONSE
Valve Operation MethodAUTOMATIC
Connection StyleFLARED (TUBE) ALL ENDS
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Seat Angle37.0 DEGREES ALL ENDS
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Maximum Operating Temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
Disk Loading MethodSPRING
Mounting PositionHORIZONTAL OR VERTICAL
MaterialRUBBER SYNTHETIC SEAT
Thread Class2A ALL ENDS A
Flow Control DevicePOPPET
Thread DirectionRIGHT-HAND ALL ENDS
Style DesignatorSTRAIGHT THRU
Thread Series DesignatorUNF ALL ENDS
Operating Pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.562 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-163-391411938 INTERCHANGEABLE
Transformer,power
Standex Electronics, Inc.
5950-00-583-424315641 INTERCHANGEABLE
Transformer,audio Frequency
Robert M. Hadley Company, Inc.
5975-00-714-8031143 INTERCHANGEABLE
Locknut,electrical Conduit
Abb Installation Products Inc
5136-00-825-7096 INTERCHANGEABLE
Tap,thread Cutting
5915-00-837-8208 INTERCHANGEABLE
Filter,radio Frequency Interfere
5310-00-880-572711938 INTERCHANGEABLE
Washer,flat
Elbitamerica, Inc.
4820-01-030-5140 INTERCHANGEABLE
Valve,check
5999-01-056-8027802892-1 INTERCHANGEABLE
Delay Line
Raytheon Company Dba Raytheon
6220-01-130-193860-3241-1 INTERCHANGEABLE
Light,indicator
Grimes Aerospace Company
5950-01-263-088511938 INTERCHANGEABLE
Reactor
Sora Power Inc. Dba Sigma Division
Cross-Reference Index
Part NumberManufacturer
SP143 Henry Technologies, Inc. (USA)
119-3-8 Henry Technologies, Inc. (USA)
Related Parts
5950-00-163-3914INTERCHANGEABLE
TRANSFORMER,POWER
11938
5950-00-583-4243INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
15641
5975-00-714-8031INTERCHANGEABLE
LOCKNUT,ELECTRICAL CONDUIT
143
5136-00-825-7096INTERCHANGEABLE
TAP,THREAD CUTTING
5915-00-837-8208INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
5310-00-880-5727INTERCHANGEABLE
WASHER,FLAT
11938
4820-01-030-5140INTERCHANGEABLE
VALVE,CHECK
5999-01-056-8027INTERCHANGEABLE
DELAY LINE
802892-1
6220-01-130-1938INTERCHANGEABLE
LIGHT,INDICATOR
60-3241-1
5950-01-263-0885INTERCHANGEABLE
REACTOR
11938
5340-01-458-8059INTERCHANGEABLE
BRACKET,MOUNTING
11938
4730-01-632-5948INTERCHANGEABLE
BASKET,STRAINER
MODEL 278

Frequently Asked Questions

What is NSN 4820-01-031-9967?

NSN 4820-01-031-9967 is a Valve,check, manufactured by Henry Technologies, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-031-9967?

NSN 4820-01-031-9967 has 2 cross-referenced part numbers: SP143 (Henry Technologies, Inc.), 119-3-8 (Henry Technologies, Inc.).

What NSN replaces 4820-01-031-9967?

There are 12 known substitutes for 4820-01-031-9967: 5950-00-163-3914, 5950-00-583-4243, 5975-00-714-8031 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SP143?

Key specifications for SP143: Material: COPPER ALLOY BODY; Media for Which Designed: REFRIGERANT, HALOGENATED SINGLE RESPONSE; Valve Operation Method: AUTOMATIC; Connection Style: FLARED (TUBE) ALL ENDS. 18 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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