PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6-2-2-05Valve,restrictor Check

Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp · NSN 4820-00-274-4595 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-274-4595 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-274-4595. Primary manufacturer part number: 6-2-2-05.
Features
  • Valve,restrictor Check — FSC 4820
  • Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES
  • Thread Series Designator: NPT ALL ENDS
  • Material: STEEL OVERALL
  • Style Designator: STRAIGHT THRU
  • Media for Which Designed: HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
  • Surface Treatment: CADMIUM
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Overall construction
General Description

The Valve,restrictor Check, cataloged under National Stock Number 4820-00-274-4595, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp. Government technical data includes 15 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-274-4595
Primary Part Number6-2-2-05
Item NameValve,restrictor Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAutomotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp
StatusACTIVE
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC ALL TREATMENT RESPONSES
Thread Series DesignatorNPT ALL ENDS
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT THRU
Media for Which DesignedHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
Surface TreatmentCADMIUM
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Mounting PositionHORIZONTAL
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
Thread DirectionRIGHT-HAND ALL ENDS
Disk Loading MethodSPRING
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Flow Control DeviceDISK
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1025-00-492-818362205 INTERCHANGEABLE
Cylinder,equilibrator
Cadillac Gage Textron Inc.
1680-00-874-93826220-5 INTERCHANGEABLE
Cover,armcap,seat
The Boeing Company Div Legacy Am&m
5940-01-114-6993DA-20 INTERCHANGEABLE
Terminal,lug
Schneider Electric Usa, Inc.
1650-01-252-848062205 INTERCHANGEABLE
Cover,hydraulic,pump-Motor
Parker Hannifin Corporation Div Hydraulic Systems Division
1560-01-631-918662205 INTERCHANGEABLE
Parts Kit,fastener
Aerovironment, Inc. Dba Aerovironment Inc
4730-01-649-321562205 INTERCHANGEABLE
Elbow,pipe to Tube
Generac Mobile Products, Llc
3040-01-721-915262205 INTERCHANGEABLE
Actuator,mechanical,nonaircraft
Exlar Corporation
Cross-Reference Index
Part NumberManufacturer
6-2-2-05 Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp (USA)
13207E7100FN12 Cecom Lr Center (USA)
13207E7113 Cecom Lr Center (USA)
Related Parts
1025-00-492-8183INTERCHANGEABLE
CYLINDER,EQUILIBRATOR
62205
1680-00-874-9382INTERCHANGEABLE
COVER,ARMCAP,SEAT
6220-5
5940-01-114-6993INTERCHANGEABLE
TERMINAL,LUG
DA-20
1650-01-252-8480INTERCHANGEABLE
COVER,HYDRAULIC,PUMP-MOTOR
62205
1560-01-631-9186INTERCHANGEABLE
PARTS KIT,FASTENER
62205
4730-01-649-3215INTERCHANGEABLE
ELBOW,PIPE TO TUBE
62205
3040-01-721-9152INTERCHANGEABLE
ACTUATOR,MECHANICAL,NONAIRCRAFT
62205

Frequently Asked Questions

What is NSN 4820-00-274-4595?

NSN 4820-00-274-4595 is a Valve,restrictor Check, manufactured by Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-274-4595?

NSN 4820-00-274-4595 has 3 cross-referenced part numbers: 6-2-2-05 (Automotive Inc Fluid Power Systems Components Div Sub of United Technologies Corp), 13207E7100FN12 (Cecom Lr Center), 13207E7113 (Cecom Lr Center).

What NSN replaces 4820-00-274-4595?

There are 7 known substitutes for 4820-00-274-4595: 1025-00-492-8183, 1680-00-874-9382, 5940-01-114-6993 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6-2-2-05?

Key specifications for 6-2-2-05: Special Features: W/HEX 11/16 IN. ACROSS FLATS IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC ALL TREATMENT RESPONSES; Thread Series Designator: NPT ALL ENDS; Material: STEEL OVERALL. 16 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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