PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4144-4Valve,check

Hydrasearch Company, Llc · NSN 4820-01-080-7246 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-080-7246 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-080-7246. Primary manufacturer part number: 4144-4.
Features
  • Valve,check — FSC 4820
  • Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN
  • Valve Operation Method: AUTOMATIC
  • Material: NICKEL ALLOY FLOW CONTROL DEVICE
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Material: COPPER ALLOY BODY
  • Disk Loading Method: SPRING
  • Connection Style: SOCKET (PIPE) ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Flow Control Device construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-080-7246, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hydrasearch Company, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-080-7246
Primary Part Number4144-4
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHydrasearch Company, Llc
StatusACTIVE
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Valve Operation MethodAUTOMATIC
MaterialNICKEL ALLOY FLOW CONTROL DEVICE
Mounting PositionHORIZONTAL OR VERTICAL
MaterialCOPPER ALLOY BODY
Disk Loading MethodSPRING
Connection StyleSOCKET (PIPE) ALL ENDS
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
Flow Control DeviceDISK
Style DesignatorSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-00-213-76704165 INTERCHANGEABLE
Stem,fluid Valve
Armstrong International Inc Dba Armstrong Machine Works
5120-00-277-2697 INTERCHANGEABLE
Wrench,open End Box
5340-00-290-7274190164-31 INTERCHANGEABLE
Clamp,loop
Raytheon Company
2920-00-676-5188 INTERCHANGEABLE
Starter Assy
4820-00-916-58814144 INTERCHANGEABLE
Valve,safety Relief
Saylor-Beall Manufacturing Company
5305-00-966-46294144 INTERCHANGEABLE
Screw,cap,jewel,low
Wakmann Watch Company Inc
4730-01-030-4945D2466 90 ELBOW NPS 1 1/4 PVCI INTERCHANGEABLE
Elbow,pipe
American Society for Testing and Materials Dba Astm International
4820-01-078-99164144-3 PL1123 INTERCHANGEABLE
Valve,check
Hydrasearch Company, Llc
5930-01-341-663841444 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
7530-01-388-7374 INTERCHANGEABLE
Label
Cross-Reference Index
Part NumberManufacturer
4144-4 PRIMARY Hydrasearch Company, Llc (USA)
4144 Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging (USA)
Related Parts
4820-00-213-7670INTERCHANGEABLE
STEM,FLUID VALVE
4165
5120-00-277-2697INTERCHANGEABLE
WRENCH,OPEN END BOX
5340-00-290-7274INTERCHANGEABLE
CLAMP,LOOP
190164-31
2920-00-676-5188INTERCHANGEABLE
STARTER ASSY
4820-00-916-5881INTERCHANGEABLE
VALVE,SAFETY RELIEF
4144
5305-00-966-4629INTERCHANGEABLE
SCREW,CAP,JEWEL,LOW
4144
4730-01-030-4945INTERCHANGEABLE
ELBOW,PIPE
D2466 90 ELBOW NPS 1 1/4 PVCI
4820-01-078-9916INTERCHANGEABLE
VALVE,CHECK
4144-3 PL1123
5930-01-341-6638INTERCHANGEABLE
SWITCH,FLOW
41444
7530-01-388-7374INTERCHANGEABLE
LABEL

Frequently Asked Questions

What is NSN 4820-01-080-7246?

NSN 4820-01-080-7246 is a Valve,check, manufactured by Hydrasearch Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-080-7246?

NSN 4820-01-080-7246 has 2 cross-referenced part numbers: 4144-4 (Hydrasearch Company, Llc), 4144 (Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging).

What NSN replaces 4820-01-080-7246?

There are 10 known substitutes for 4820-01-080-7246: 4820-00-213-7670, 5120-00-277-2697, 5340-00-290-7274 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4144-4?

Key specifications for 4144-4: Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN; Valve Operation Method: AUTOMATIC; Material: NICKEL ALLOY FLOW CONTROL DEVICE; Mounting Position: HORIZONTAL OR VERTICAL. 10 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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