PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C02CD09P20EValve,check

Eaton Corporation Dba Eaton Inoac Div Eaton · NSN 4820-01-202-9453 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-202-9453 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-202-9453. Primary manufacturer part number: C02CD09P20E.
Features
  • Valve,check — FSC 4820
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS
  • Material: STEEL CORROSION RESISTING BODY
  • Flow Control Device: DISK
  • Style Designator: CROSS
  • Connection Style: STREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
  • Nominal Pipe Size Accommodated: 1.250 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Body construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-202-9453, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Corporation Dba Eaton Inoac Div Eaton. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-202-9453
Primary Part NumberC02CD09P20E
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Corporation Dba Eaton Inoac Div Eaton
StatusACTIVE
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeUNTHREADED INTERNAL PIPE ALL ENDS
MaterialSTEEL CORROSION RESISTING BODY
Flow Control DeviceDISK
Style DesignatorCROSS
Connection StyleSTREAMLINED WITH ONE BRAZING RING (PIPE) ALL ENDS
Nominal Pipe Size Accommodated1.250 INCHES ALL ENDS IN
Mounting PositionHORIZONTAL
Disk Loading MethodSPRING
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-01-067-34232620-908X1PC2REVFASSYR-1IN INTERCHANGEABLE
Nut,union
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-107-4010C02CD09PS16E PIECE 10 INTERCHANGEABLE
Guide,valve Stem
Eaton Corporation Dba Eaton Inoac Div Eaton
Cross-Reference Index
Part NumberManufacturer
2620-908X1 1 1/4IN Electric Boat Corporation Div General Dynamics Electric Boat (USA)
C02CD09P20E PRIMARY Eaton Corporation Dba Eaton Inoac Div Eaton (USA)
2620-908X1 1 1/4IN John Evans' Sons, Incorporated (USA)
2620-908X1 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4730-01-067-3423INTERCHANGEABLE
NUT,UNION
2620-908X1PC2REVFASSYR-1IN
4820-01-107-4010INTERCHANGEABLE
GUIDE,VALVE STEM
C02CD09PS16E PIECE 10

Frequently Asked Questions

What is NSN 4820-01-202-9453?

NSN 4820-01-202-9453 is a Valve,check, manufactured by Eaton Corporation Dba Eaton Inoac Div Eaton, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-202-9453?

NSN 4820-01-202-9453 has 4 cross-referenced part numbers: 2620-908X1 1 1/4IN (Electric Boat Corporation Div General Dynamics Electric Boat), C02CD09P20E (Eaton Corporation Dba Eaton Inoac Div Eaton), 2620-908X1 1 1/4IN (John Evans' Sons, Incorporated), 2620-908X1 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-202-9453?

There are 2 known substitutes for 4820-01-202-9453: 4730-01-067-3423, 4820-01-107-4010. Verify interchangeability with system specifications before substitution.

What are the specifications of C02CD09P20E?

Key specifications for C02CD09P20E: Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Material: STEEL CORROSION RESISTING BODY; Flow Control Device: DISK. 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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