PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6610M2YValve,bleeder,hydraulic System

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · NSN 4820-01-080-9611 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-080-9611 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-080-9611. Primary manufacturer part number: 6610M2Y.
Features
  • Valve,bleeder,hydraulic System — FSC 4820
  • Maximum Operating Temp: 600.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Connection Type: THREADED EXTERNAL PIPE ALL ENDS
  • Flow Control Device: DISK
  • Material: STEEL CORROSION RESISTING BODY
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Nominal Thread Size: 0.125 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,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-080-9611, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-080-9611
Primary Part Number6610M2Y
Item NameValve,bleeder,hydraulic System
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
StatusACTIVE
Maximum Operating Temp600.0 FAHRENHEIT SINGLE RESPONSE DEGF
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Flow Control DeviceDISK
MaterialSTEEL CORROSION RESISTING BODY
Connection StylePLAIN (PIPE) ALL ENDS
Thread DirectionRIGHT-HAND ALL ENDS
Nominal Thread Size0.125 INCHES ALL ENDS IN
Media for Which DesignedAIR SINGLE RESPONSE
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
Operating Pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Valve Operation MethodMANUAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-00-116-2121SS4P2M INTERCHANGEABLE
Valve,bleeder,hydraulic System
Swagelok Co
Cross-Reference Index
Part NumberManufacturer
11449114 Us Army Aviation and Missile Command (USA)
6610M2Y PRIMARY Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
11477154 Whitey Co (USA)
SM91010-001 Thales Uk Limited Dba Thales Uk Ltd Optronics (GBR)
SS-4P-2M Whitey Co (USA)
Related Parts
4820-00-116-2121INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
SS4P2M

Frequently Asked Questions

What is NSN 4820-01-080-9611?

NSN 4820-01-080-9611 is a Valve,bleeder,hydraulic System, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-080-9611?

NSN 4820-01-080-9611 has 5 cross-referenced part numbers: 11449114 (Us Army Aviation and Missile Command), 6610M2Y (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 11477154 (Whitey Co), SM91010-001 (Thales Uk Limited Dba Thales Uk Ltd Optronics), SS-4P-2M (Whitey Co).

What NSN replaces 4820-01-080-9611?

There is 1 known substitute for 4820-01-080-9611: 4820-00-116-2121. Verify interchangeability with system specifications before substitution.

What are the specifications of 6610M2Y?

Key specifications for 6610M2Y: Maximum Operating Temp: 600.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; Flow Control Device: DISK; Material: STEEL CORROSION RESISTING BODY. 12 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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