PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20338Cartridge,check

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4820-00-879-9257 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-879-9257 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-879-9257. Primary manufacturer part number: 20338.
Features
  • Cartridge,check — FSC 4820
  • General Characteristics Item Description: CAST IRON OUTER DISK,STEEL CORROSION RESISTING INNER DISKM,STEEL SPRING;7.750 IN.O/A OD;3.625 IN.O/ATHK,SLOTTED SURFACE WITH 16 SLOTS IN
  • 2 verified cross-references
  • Primary manufacturer: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Cartridge,check, cataloged under National Stock Number 4820-00-879-9257, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 1 verified specification, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-879-9257
Primary Part Number20338
Item NameCartridge,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
General Characteristics Item DescriptionCAST IRON OUTER DISK,STEEL CORROSION RESISTING INNER DISKM,STEEL SPRING;7.750 IN.O/A OD;3.625 IN.O/ATHK,SLOTTED SURFACE WITH 16 SLOTS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-150-9264 INTERCHANGEABLE
Screw,machine
5950-00-243-027920338 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
5330-00-599-7724800-0130-3/8 INTERCHANGEABLE
Packing with Retainer
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
3020-00-979-480820338 INTERCHANGEABLE
Pulley,groove
Eagle Crusher Co Inc Dba Stedman Machine Co
4820-01-073-5941A7364.001.145 INTERCHANGEABLE
Dog Bushing,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-074-658207447002108 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-120-051920338-1130 INTERCHANGEABLE
Cap,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-184-410720338L41SS INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3020-01-203-125520338 INTERCHANGEABLE
Gear,spur
Twg Canada Consolidated Inc
4820-01-420-187720338 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Triumph Actuation Systems - Valencia, Inc. Dba Triumph Actuation Systems - Valencia Inc Div Triumph Actuation Systems-Val
Cross-Reference Index
Part NumberManufacturer
20338 Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine (USA)
20338 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
5305-00-150-9264INTERCHANGEABLE
SCREW,MACHINE
5950-00-243-0279INTERCHANGEABLE
REACTOR
20338
5330-00-599-7724INTERCHANGEABLE
PACKING WITH RETAINER
800-0130-3/8
3020-00-979-4808INTERCHANGEABLE
PULLEY,GROOVE
20338
4820-01-073-5941INTERCHANGEABLE
DOG BUSHING,VALVE
A7364.001.145
4820-01-074-6582INTERCHANGEABLE
SEAT,VALVE
07447002108
4820-01-120-0519INTERCHANGEABLE
CAP,VALVE
20338-1130
4820-01-184-4107INTERCHANGEABLE
VALVE,SAFETY RELIEF
20338L41SS
3020-01-203-1255INTERCHANGEABLE
GEAR,SPUR
20338
4820-01-420-1877INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
20338
6640-01-590-0591INTERCHANGEABLE
TEST TUBE,BLOOD COLLECTING
362799

Frequently Asked Questions

What is NSN 4820-00-879-9257?

NSN 4820-00-879-9257 is a Cartridge,check, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-879-9257?

NSN 4820-00-879-9257 has 2 cross-referenced part numbers: 20338 (Coltec Industries Inc. Dba Fairbanks Morse Engine Div Fairbanks Morse Engine), 20338 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4820-00-879-9257?

There are 11 known substitutes for 4820-00-879-9257: 5305-00-150-9264, 5950-00-243-0279, 5330-00-599-7724 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20338?

Key specifications for 20338: General Characteristics Item Description: CAST IRON OUTER DISK,STEEL CORROSION RESISTING INNER DISKM,STEEL SPRING;7.750 IN.O/A OD;3.625 IN.O/ATHK,SLOTTED SURFACE WITH 16 SLOTS IN. 1 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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