PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9559T4CCValve,plug

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-295-2441 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-295-2441 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-295-2441. Primary manufacturer part number: 9559T4CC.
Features
  • Valve,plug — FSC 4820
  • Media for Which Designed: OIL FIRST RESPONSE
  • Thread Quantity Per Inch: 20 ALL ENDS
  • Connection Type: THREADED EXTERNAL TUBE ALL ENDS
  • Valve Operation Method: MANUAL
  • Media for Which Designed: NITROGEN, GASEOUS THIRD RESPONSE
  • Media for Which Designed: AIR SECOND RESPONSE
  • Connection Style: FLARELESS (TUBE) ALL ENDS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 303 Body construction
General Description

The Valve,plug, cataloged under National Stock Number 4820-01-295-2441, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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: Active.

Technical Specifications
ParameterValue
NSN4820-01-295-2441
Primary Part Number9559T4CC
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Media for Which DesignedOIL FIRST RESPONSE
Thread Quantity Per Inch20 ALL ENDS
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Valve Operation MethodMANUAL
Media for Which DesignedNITROGEN, GASEOUS THIRD RESPONSE
Media for Which DesignedAIR SECOND RESPONSE
Connection StyleFLARELESS (TUBE) ALL ENDS
MaterialSTEEL COMP 303 BODY
Thread Class3A ALL ENDS A
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
Thread Series DesignatorUNIFIED NATIONAL JOINT (UNJ) ALL ENDS
Nominal Thread Size0.438 INCHES ALL ENDS IN
Seat Angle24.0 DEGREES ALL ENDS
Operating Pressure2000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread DirectionRIGHT-HAND ALL ENDS
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flow StyleTWO-WAY TWO PORT 90 DEGREE PLUG TURN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-068-8357 INTERCHANGEABLE
Screw,machine
6240-00-123-7648128 INTERCHANGEABLE
Lamp,incandescent
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
1560-00-320-85127155 INTERCHANGEABLE
Extension Assy,e,ha
Solar Turbines Incorporated Dba Solar Turbines Incorporated
5330-00-500-37267155 INTERCHANGEABLE
Gasket
Robert H Wager Co Inc
3439-00-947-5389 INTERCHANGEABLE
Tip,electric Soldering Iron
5950-01-013-7367984751-1C INTERCHANGEABLE
Transformer,audio Frequency
Raytheon Company Dba Raytheon
5995-01-028-9324467098-801 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Raytheon Company
4320-01-130-7230DS-936294 INTERCHANGEABLE
Plate,cam,pump
Eaton Aerospace, Llc Dba Jackson South
4810-01-222-79777155 INTERCHANGEABLE
Valve,solenoid
Edro Corporation, the Dba Edro Corp
5998-01-241-54237155 INTERCHANGEABLE
Circuit Card Assembly
Quarterwave Corp.
Cross-Reference Index
Part NumberManufacturer
9559T4CC PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
D952 PIECE 82 Rix Industries (USA)
715-5 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
5305-00-068-8357INTERCHANGEABLE
SCREW,MACHINE
6240-00-123-7648INTERCHANGEABLE
LAMP,INCANDESCENT
128
1560-00-320-8512INTERCHANGEABLE
EXTENSION ASSY,E,HA
7155
5330-00-500-3726INTERCHANGEABLE
GASKET
7155
3439-00-947-5389INTERCHANGEABLE
TIP,ELECTRIC SOLDERING IRON
5950-01-013-7367INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
984751-1C
5995-01-028-9324INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
467098-801
4320-01-130-7230INTERCHANGEABLE
PLATE,CAM,PUMP
DS-936294
4810-01-222-7977INTERCHANGEABLE
VALVE,SOLENOID
7155
5998-01-241-5423INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
7155
5950-01-244-1694INTERCHANGEABLE
TRANSFORMER,POWER
5950-01-268-7308INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
7155

Frequently Asked Questions

What is NSN 4820-01-295-2441?

NSN 4820-01-295-2441 is a Valve,plug, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-295-2441?

NSN 4820-01-295-2441 has 3 cross-referenced part numbers: 9559T4CC (Circor Aerospace, Inc. Dba Circor Aerospace Inc), D952 PIECE 82 (Rix Industries), 715-5 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-295-2441?

There are 12 known substitutes for 4820-01-295-2441: 5305-00-068-8357, 6240-00-123-7648, 1560-00-320-8512 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9559T4CC?

Key specifications for 9559T4CC: Media for Which Designed: OIL FIRST RESPONSE; Thread Quantity Per Inch: 20 ALL ENDS; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Valve Operation Method: MANUAL. 17 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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