PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

682-2Valve,check

Admiral Valve Llc Dba Cpv Manufacturing · NSN 4820-01-249-1321 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-249-1321 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-249-1321. Primary manufacturer part number: 682-2.
Features
  • Valve,check — FSC 4820
  • Maximum Operating Temp: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Valve Operation Method: AUTOMATIC
  • Material: COPPER ALLOY BODY
  • Flow Control Device: DISK
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
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 4820-01-249-1321, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Admiral Valve Llc Dba Cpv Manufacturing. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-01-249-1321
Primary Part Number682-2
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAdmiral Valve Llc Dba Cpv Manufacturing
StatusACTIVE
Maximum Operating Temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection StylePLAIN (PIPE) ALL ENDS
Valve Operation MethodAUTOMATIC
MaterialCOPPER ALLOY BODY
Flow Control DeviceDISK
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Operating Pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
MaterialNICKEL ALLOY SEAT
Style DesignatorSTRAIGHT THRU
Nominal Thread Size0.375 INCHES ALL ENDS IN
Mounting PositionHORIZONTAL OR VERTICAL
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-187-07136822 INTERCHANGEABLE
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5330-00-189-9712 INTERCHANGEABLE
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5310-00-197-3331 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
682-2 PRIMARY Admiral Valve Llc Dba Cpv Manufacturing (USA)
Related Parts
5935-00-187-0713INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
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5330-00-189-9712INTERCHANGEABLE
PACKING
5310-00-197-3331INTERCHANGEABLE
WASHER,SADDLE
2530-00-449-7357INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
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SETSCREW
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SEMICONDUCTOR DEVICES,UNITIZED
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5961-01-064-4209INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
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TUBE ASSEMBLY,RESPIRATORY THERAP
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SUPPORT,ARCH
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Frequently Asked Questions

What is NSN 4820-01-249-1321?

NSN 4820-01-249-1321 is a Valve,check, manufactured by Admiral Valve Llc Dba Cpv Manufacturing, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-249-1321?

NSN 4820-01-249-1321 has 1 cross-referenced part number: 682-2 (Admiral Valve Llc Dba Cpv Manufacturing).

What NSN replaces 4820-01-249-1321?

There are 12 known substitutes for 4820-01-249-1321: 5935-00-187-0713, 5330-00-189-9712, 5310-00-197-3331 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 682-2?

Key specifications for 682-2: Maximum Operating Temp: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: PLAIN (PIPE) ALL ENDS; Valve Operation Method: AUTOMATIC; Material: COPPER ALLOY BODY. 14 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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