PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14641M0NELValve,check

Mark Controls Corp Pacific Valves Div · NSN 4820-00-897-7118 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-897-7118 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-897-7118. Primary manufacturer part number: 14641M0NEL.
Features
  • Valve,check — FSC 4820
  • Media for Which Designed: WATER, FRESH SINGLE RESPONSE
  • Style Designator: ANGLE
  • Connection Type: BUTT WELD PIPE FIRST END
  • Material: COBALT ALLOY BODY LINING
  • Criticality Code Justification: ZZZY
  • Mounting Position: HORIZONTAL
  • Reference Number Differentiating Characteristics: SELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS
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 4820-00-897-7118, 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 10 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-897-7118
Primary Part Number14641M0NEL
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMark Controls Corp Pacific Valves Div
StatusACTIVE
Media for Which DesignedWATER, FRESH SINGLE RESPONSE
Style DesignatorANGLE
Connection TypeBUTT WELD PIPE FIRST END
MaterialCOBALT ALLOY BODY LINING
Criticality Code JustificationZZZY
Mounting PositionHORIZONTAL
Reference Number Differentiating CharacteristicsSELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS
Nominal Pipe Size Accommodated2.000 INCHES FIRST END IN
MaterialNICKEL ALLOY BODY
Operating Pressure2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
8030-00-233-6185 INTERCHANGEABLE
Sealing Compound
5935-00-257-7159220-1044-00 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
2590-00-525-4387465379 INTERCHANGEABLE
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Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5985-00-925-54231239002P4 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5340-01-081-9741 INTERCHANGEABLE
Strap,retaining
5360-01-116-1060147 INTERCHANGEABLE
Spring,helical,compression
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5940-01-149-846514700 INTERCHANGEABLE
Terminal,lug
Aerosonic Llc
5330-01-179-590714700 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5360-01-301-1175147-00 INTERCHANGEABLE
Spring,helical,compression
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5360-01-470-8800 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
14641M0NEL Mark Controls Corp Pacific Valves Div (USA)
14700 Mark Controls Corp Pacific Valves Div (USA)
Related Parts
8030-00-233-6185INTERCHANGEABLE
SEALING COMPOUND
5935-00-257-7159INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
220-1044-00
2590-00-525-4387INTERCHANGEABLE
PARTS KIT,HORN BUTTON SWITCH
465379
5985-00-925-5423INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
1239002P4
5340-01-081-9741INTERCHANGEABLE
STRAP,RETAINING
5360-01-116-1060INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
147
5940-01-149-8465INTERCHANGEABLE
TERMINAL,LUG
14700
5330-01-179-5907INTERCHANGEABLE
SEAL,PLAIN ENCASED
14700
5360-01-301-1175INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
147-00
5360-01-470-8800INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION

Frequently Asked Questions

What is NSN 4820-00-897-7118?

NSN 4820-00-897-7118 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 4820-00-897-7118?

NSN 4820-00-897-7118 has 2 cross-referenced part numbers: 14641M0NEL (Mark Controls Corp Pacific Valves Div), 14700 (Mark Controls Corp Pacific Valves Div).

What NSN replaces 4820-00-897-7118?

There are 10 known substitutes for 4820-00-897-7118: 8030-00-233-6185, 5935-00-257-7159, 2590-00-525-4387 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14641M0NEL?

Key specifications for 14641M0NEL: Media for Which Designed: WATER, FRESH SINGLE RESPONSE; Style Designator: ANGLE; Connection Type: BUTT WELD PIPE FIRST END; Material: COBALT ALLOY BODY LINING. 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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