PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11660Cylinder Assembly,hydraulic Brak

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 1630-00-684-6147 · FSC 1630 · No Item Name Available
Verified by PartsTable
NSN 1630-00-684-6147 — this item is cataloged by the U.S. Government under National Stock Number 1630-00-684-6147. Primary manufacturer part number: 11660.
Features
  • Cylinder Assembly,hydraulic Brak — FSC 1630
  • FSC Application Data: BRAKE SYSTEM,AIRCRAFT
  • Mounting Facility Diameter: 0.250 INCHES NOMINAL IN
  • Seat Angle in Deg: 20.0 LOCATION NOT OTHERWISE SPECIFIED
  • First Piston Rod End Style: TONGUE TYPE LOCATION NOT OTHERWISE SPECIFIED
  • Straight Bore Inside Diameter: 1.250 INCHES NOMINAL IN
  • Reservoir Type: INTEGRAL
  • Material: ALUMINUM ALLOY BODY
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 1630-00-684-6147, is classified within Federal Supply Class 1630 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1630-00-684-6147
Primary Part Number11660
Item NameCylinder Assembly,hydraulic Brak
FSC / FSG1630 / 16 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
FSC Application DataBRAKE SYSTEM,AIRCRAFT
Mounting Facility Diameter0.250 INCHES NOMINAL IN
Seat Angle in Deg20.0 LOCATION NOT OTHERWISE SPECIFIED
First Piston Rod End StyleTONGUE TYPE LOCATION NOT OTHERWISE SPECIFIED
Straight Bore Inside Diameter1.250 INCHES NOMINAL IN
Reservoir TypeINTEGRAL
MaterialALUMINUM ALLOY BODY
Port StyleGASKET SEAL LOCATION NOT OTHERWISE SPECIFIED
Port Thread Quantity Per Inch20 LOCATION NOT OTHERWISE SPECIFIED
Port Thread Class2B LOCATION NOT OTHERWISE SPECIFIED
Port Location and Quantity1 CYLINDER HEAD END
Extended Length12.125 INCHES NOMINAL IN
Port Thread Diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
First End Fork Width0.437 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Compressed Length9.790 INCHES NOMINAL IN
Port Thread Series DesignatorUNF LOCATION NOT OTHERWISE SPECIFIED
First End Tongue Length0.562 INCHES NOMINAL IN
Mounting Type and LocationTONGUE CYLINDER HEAD END
First End Thickness at Mounting Holes0.375 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
First End Hole Diameter0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Mounting Facility Length0.625 INCHES NOMINAL IN
Mounting ProvisionPIN
Actuation MethodDIRECT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3455-00-243-217011660 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
4510-00-325-318114050 INTERCHANGEABLE
Bubbler,drinking Fountain
Alter Harry Co the Div of T E C
5950-00-371-6935315-18297-01 INTERCHANGEABLE
Reactor
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
6665-00-542-1442D16 INTERCHANGEABLE
Indicator,combustible Gas,portab
Scott Instruments
4920-01-037-5110 INTERCHANGEABLE
Analyzer Assembly,servovalve
5940-01-148-4603 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
11660 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
3455-00-243-2170INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11660
4510-00-325-3181INTERCHANGEABLE
BUBBLER,DRINKING FOUNTAIN
14050
5950-00-371-6935INTERCHANGEABLE
REACTOR
315-18297-01
6665-00-542-1442INTERCHANGEABLE
INDICATOR,COMBUSTIBLE GAS,PORTAB
D16
4920-01-037-5110INTERCHANGEABLE
ANALYZER ASSEMBLY,SERVOVALVE
5940-01-148-4603INTERCHANGEABLE
TERMINAL BOARD

Frequently Asked Questions

What is NSN 1630-00-684-6147?

NSN 1630-00-684-6147 is a Cylinder Assembly,hydraulic Brak, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 1630 (No Item Name Available). Status: active.

What are the part numbers for NSN 1630-00-684-6147?

NSN 1630-00-684-6147 has 1 cross-referenced part number: 11660 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 1630-00-684-6147?

There are 6 known substitutes for 1630-00-684-6147: 3455-00-243-2170, 4510-00-325-3181, 5950-00-371-6935 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11660?

Key specifications for 11660: FSC Application Data: BRAKE SYSTEM,AIRCRAFT; Mounting Facility Diameter: 0.250 INCHES NOMINAL IN; Seat Angle in Deg: 20.0 LOCATION NOT OTHERWISE SPECIFIED; First Piston Rod End Style: TONGUE TYPE LOCATION NOT OTHERWISE SPECIFIED. 25 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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