PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14641Valve,check

Mark Controls Corp Pacific Valves Div · NSN 4820-00-892-2262 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-892-2262 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-892-2262. Primary manufacturer part number: 14641.
Features
  • Valve,check — FSC 4820
  • Criticality Code Justification: ZZZY
  • Valve Operation Method: AUTOMATIC
  • Media for Which Designed: WATER, FRESH SINGLE RESPONSE
  • Material: COBALT ALLOY BODY LINING
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY REPLY TO PACS AAFZ,AAJJ AND ACKM
  • Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN
  • Style Designator: ANGLE
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Cobalt Alloy Body Lining construction
General Description

The Valve,check, cataloged under National Stock Number 4820-00-892-2262, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mark Controls Corp Pacific Valves Div. Government technical data includes 13 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-892-2262
Primary Part Number14641
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMark Controls Corp Pacific Valves Div
StatusACTIVE
Criticality Code JustificationZZZY
Valve Operation MethodAUTOMATIC
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
MaterialCOBALT ALLOY BODY LINING
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY REPLY TO PACS AAFZ,AAJJ AND ACKM
Nominal Pipe Size Accommodated0.500 INCHES FIRST END IN
Style DesignatorANGLE
MaterialNICKEL ALLOY BODY
Mounting PositionHORIZONTAL
Operating Pressure2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeUNTHREADED INTERNAL TUBE FIRST END
Connection StyleSOCKET (PIPE) FIRST END
Flow Control DeviceDISK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5306-00-202-0509 INTERCHANGEABLE
Bolt,eye
2910-00-383-4258202327 INTERCHANGEABLE
Float
Northrop Grumman Systems Corporation
3040-00-800-774914641 INTERCHANGEABLE
Shaft,straight
L3harris Technologies, Inc. Div Space and Airborne Systems
5330-01-137-958714-641 INTERCHANGEABLE
Packing,preformed
Cunico Corporation
2530-01-164-25284037875 INTERCHANGEABLE
Rotor,disc Brake
Chrysler Corp Service and Parts Opns
5910-01-179-4670 INTERCHANGEABLE
Capacitor,fixed,electrolytic
5962-01-282-7253 INTERCHANGEABLE
Microcircuit,digital
1005-01-719-435414641 INTERCHANGEABLE
Body Assembly,gun,automatic
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
14641 Mark Controls Corp Pacific Valves Div (USA)
14641*MONEL Mark Controls Corp Pacific Valves Div (USA)
Related Parts
5306-00-202-0509INTERCHANGEABLE
BOLT,EYE
2910-00-383-4258INTERCHANGEABLE
FLOAT
202327
3040-00-800-7749INTERCHANGEABLE
SHAFT,STRAIGHT
14641
5330-01-137-9587INTERCHANGEABLE
PACKING,PREFORMED
14-641
2530-01-164-2528INTERCHANGEABLE
ROTOR,DISC BRAKE
4037875
5910-01-179-4670INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
5962-01-282-7253INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
1005-01-719-4354INTERCHANGEABLE
BODY ASSEMBLY,GUN,AUTOMATIC
14641

Frequently Asked Questions

What is NSN 4820-00-892-2262?

NSN 4820-00-892-2262 is a Valve,check, manufactured by Mark Controls Corp Pacific Valves Div, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-892-2262?

NSN 4820-00-892-2262 has 2 cross-referenced part numbers: 14641 (Mark Controls Corp Pacific Valves Div), 14641*MONEL (Mark Controls Corp Pacific Valves Div).

What NSN replaces 4820-00-892-2262?

There are 8 known substitutes for 4820-00-892-2262: 5306-00-202-0509, 2910-00-383-4258, 3040-00-800-7749 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14641?

Key specifications for 14641: Criticality Code Justification: ZZZY; Valve Operation Method: AUTOMATIC; Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Material: COBALT ALLOY BODY LINING. 13 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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