PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C5G-825-S3Valve,check

Eaton Aerospace, Llc Dba Jackson South · NSN 4820-01-336-3280 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-336-3280 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-336-3280. Primary manufacturer part number: C5G-825-S3.
Features
  • Valve,check — FSC 4820
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Mounting Position: HORIZONTAL OR VERTICAL
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Valve Operation Method: AUTOMATIC
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Opening Pressure Setting: 50.0 POUNDS PER SQUARE INCH LBS
  • Flow Control Device: DISK
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,check, cataloged under National Stock Number 4820-01-336-3280, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, 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
NSN4820-01-336-3280
Primary Part NumberC5G-825-S3
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Nominal Thread Size1.250 INCHES ALL ENDS IN
Mounting PositionHORIZONTAL OR VERTICAL
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Valve Operation MethodAUTOMATIC
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Opening Pressure Setting50.0 POUNDS PER SQUARE INCH LBS
Flow Control DeviceDISK
Media for Which DesignedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Center to Center Distance3.620 INCHES IN
MaterialSTEEL BODY
Style DesignatorSTRAIGHT THRU
Thread DirectionRIGHT-HAND ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5330-00-640-9583630889 INTERCHANGEABLE
Gasket
Am General Llc
5950-00-645-0127 INTERCHANGEABLE
Transformer,power
4320-00-723-1971DS-921808 INTERCHANGEABLE
Sleeve,adjusting
Eaton Aerospace, Llc Dba Jackson South
6150-01-047-534917254 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
4420-01-335-9739F502-DY-2P-CNTB INTERCHANGEABLE
Heater,fluid,industrial
Young Touchstone Company Div Young Touchstone
4820-01-335-9881 INTERCHANGEABLE
Valve,proportional
4820-01-336-3276HC-G1-02 INTERCHANGEABLE
Valve,angle
Parker Hannifin Corporation Dba Quick Coupling Div Div Quick Coupling Division Bruning Operation
4820-01-336-60092470B-11E0-V INTERCHANGEABLE
Valve,regulating,temperature
Amot Controls Llc
3040-01-337-4666 INTERCHANGEABLE
Filler,breather
6760-01-442-400017254 INTERCHANGEABLE
Holder,mirror
Mekel Technology, Inc.
Cross-Reference Index
Part NumberManufacturer
17254 ITEM 18 Northern Line Machine Div of Commencement Intl Corp (USA)
C5G-825-53 Eaton Aerospace, Llc Dba Jackson South (USA)
17254 Northern Line Machine Div of Commencement Intl Corp (USA)
C5G-825-S3 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5330-00-640-9583INTERCHANGEABLE
GASKET
630889
5950-00-645-0127INTERCHANGEABLE
TRANSFORMER,POWER
4320-00-723-1971INTERCHANGEABLE
SLEEVE,ADJUSTING
DS-921808
6150-01-047-5349INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
17254
4420-01-335-9739INTERCHANGEABLE
HEATER,FLUID,INDUSTRIAL
F502-DY-2P-CNTB
4820-01-335-9881INTERCHANGEABLE
VALVE,PROPORTIONAL
4820-01-336-3276INTERCHANGEABLE
VALVE,ANGLE
HC-G1-02
4820-01-336-6009INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
2470B-11E0-V
3040-01-337-4666INTERCHANGEABLE
FILLER,BREATHER
6760-01-442-4000INTERCHANGEABLE
HOLDER,MIRROR
17254

Frequently Asked Questions

What is NSN 4820-01-336-3280?

NSN 4820-01-336-3280 is a Valve,check, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-336-3280?

NSN 4820-01-336-3280 has 4 cross-referenced part numbers: 17254 ITEM 18 (Northern Line Machine Div of Commencement Intl Corp), C5G-825-53 (Eaton Aerospace, Llc Dba Jackson South), 17254 (Northern Line Machine Div of Commencement Intl Corp), C5G-825-S3 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 4820-01-336-3280?

There are 10 known substitutes for 4820-01-336-3280: 5330-00-640-9583, 5950-00-645-0127, 4320-00-723-1971 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C5G-825-S3?

Key specifications for C5G-825-S3: Nominal Thread Size: 1.250 INCHES ALL ENDS IN; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Valve Operation Method: AUTOMATIC. 14 total characteristics are documented in the Federal Logistics Information System.

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