PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2200-1/2Valve,check

Sealco Air Controls Inc · NSN 4820-01-242-4400 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-242-4400 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-242-4400. Primary manufacturer part number: 2200-1/2.
Features
  • Valve,check — FSC 4820
  • Thread Series Designator: NPT ALL ENDS
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Flow Control Device: PISTON
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Style Designator: STRAIGHT THRU
  • Nominal Thread Size: 0.500 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-242-4400, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sealco Air Controls Inc. Government technical data includes 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-242-4400
Primary Part Number2200-1/2
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSealco Air Controls Inc
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Flow Control DevicePISTON
Thread DirectionRIGHT-HAND ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorSTRAIGHT THRU
Nominal Thread Size0.500 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5360-00-078-074519204 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5915-00-090-3419NT8138 INTERCHANGEABLE
Filter,radio Frequency Interfere
Bogen Communications Inc
4320-00-126-5214CS4320-0087 INTERCHANGEABLE
Ring,lantern
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
6145-00-191-8398 INTERCHANGEABLE
Braid,wire
1315-00-585-1739 INTERCHANGEABLE
Cartridge,81 Millimeter
1650-01-029-5336220012 INTERCHANGEABLE
Block,piston and Rod Assembly
Eaton Aerospace, Llc Dba Jackson South
5930-01-040-1084217364 INTERCHANGEABLE
Switch,rotary
Fluke Corp
6350-01-080-1983708-000-02 INTERCHANGEABLE
Control,alarm
Monaco Enterprises, Inc. Dba Monaco Enterprises Inc
3040-01-180-078522001-2 INTERCHANGEABLE
Shaft,shouldered
Breeze-Eastern Llc
6630-01-283-9499155021 INTERCHANGEABLE
Carbon Dioxide Analyzer Kit
Thermo Forma Inc Div Thermo Forma, Inc.
Cross-Reference Index
Part NumberManufacturer
2200-1/2 PRIMARY Sealco Air Controls Inc (USA)
19204 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
Related Parts
5360-00-078-0745INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
19204
5915-00-090-3419INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
NT8138
4320-00-126-5214INTERCHANGEABLE
RING,LANTERN
CS4320-0087
6145-00-191-8398INTERCHANGEABLE
BRAID,WIRE
1315-00-585-1739INTERCHANGEABLE
CARTRIDGE,81 MILLIMETER
1650-01-029-5336INTERCHANGEABLE
BLOCK,PISTON AND ROD ASSEMBLY
220012
5930-01-040-1084INTERCHANGEABLE
SWITCH,ROTARY
217364
6350-01-080-1983INTERCHANGEABLE
CONTROL,ALARM
708-000-02
3040-01-180-0785INTERCHANGEABLE
SHAFT,SHOULDERED
22001-2
6630-01-283-9499INTERCHANGEABLE
CARBON DIOXIDE ANALYZER KIT
155021
5920-01-352-3625INTERCHANGEABLE
STRAP,WRIST,ELECTROSTATIC DISCHA
2224
7930-01-381-5820INTERCHANGEABLE
CLEANING SOLUTION,PORCELAIN
7930013815820

Frequently Asked Questions

What is NSN 4820-01-242-4400?

NSN 4820-01-242-4400 is a Valve,check, manufactured by Sealco Air Controls Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-242-4400?

NSN 4820-01-242-4400 has 2 cross-referenced part numbers: 2200-1/2 (Sealco Air Controls Inc), 19204 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems).

What NSN replaces 4820-01-242-4400?

There are 12 known substitutes for 4820-01-242-4400: 5360-00-078-0745, 5915-00-090-3419, 4320-00-126-5214 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2200-1/2?

Key specifications for 2200-1/2: Thread Series Designator: NPT ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Flow Control Device: PISTON; Thread Direction: RIGHT-HAND ALL ENDS. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-242-4400 still in active supply?

NSN 4820-01-242-4400 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com