PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

501BCylinder Assembly,hydraulic Brak

Zf Off-Highway Solutions Minnesota Inc · NSN 2530-00-392-4783 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-392-4783 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-392-4783. Primary manufacturer part number: 501B.
Features
  • Cylinder Assembly,hydraulic Brak — FSC 2530
  • First Piston Rod End Thread Series Designator: UNF
  • Port Location and Quantity: 1 CYLINDER HEAD END
  • Mounting Facility Thread Direction: RIGHT-HAND
  • Straight Bore Inside Diameter: 1.250 INCHES NOMINAL IN
  • Mounting Facility Thread Series Designator: UNF
  • Mounting Provision: THREADED MOUNTING HOLES
  • First Piston Rod End Thread Diameter: 0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Applications
  • Applications requiring Steel Body construction
General Description

The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-392-4783, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Zf Off-Highway Solutions Minnesota Inc. Government technical data includes 24 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-392-4783
Primary Part Number501B
Item NameCylinder Assembly,hydraulic Brak
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerZf Off-Highway Solutions Minnesota Inc
StatusCANCELLED
First Piston Rod End Thread Series DesignatorUNF
Port Location and Quantity1 CYLINDER HEAD END
Mounting Facility Thread DirectionRIGHT-HAND
Straight Bore Inside Diameter1.250 INCHES NOMINAL IN
Mounting Facility Thread Series DesignatorUNF
Mounting ProvisionTHREADED MOUNTING HOLES
First Piston Rod End Thread Diameter0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Thread DirectionUNABLE TO DECODE
Longest Horizontal Distance Between Mounting Centers3.000 INCHES NOMINAL IN
First Piston Rod End Thread Class2A A
Mounting Facility Thread Quantity Per Inch20
First End External Thread Length2.500 INCHES NOMINAL IN
Mounting Facility Thread Length0.750 INCHES NOMINAL IN
First Piston Rod End Thread Quantity Per Inch20
Mounting Provision Arrangement StyleTHREE HOLE TRIANGULAR
First Piston Rod End StyleEXTERNAL THREADED LOCATION NOT OTHERWISE SPECIFIED
Mounting Facility Thread Class2B
Extended Length15.250 INCHES NOMINAL IN
MaterialSTEEL BODY
First End Outside Diameter0.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Actuation MethodDIRECT
Mounting Facility Thread Diameter0.437 INCHES NOMINAL IN
Reservoir TypeINTEGRAL
Longest Vertical Distance Between Mounting Centers1.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5961-00-061-4588501 INTERCHANGEABLE
Holder,semiconductor Device
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5950-00-087-0431 INTERCHANGEABLE
Transformer,power Autotransforme
6625-00-948-3011 INTERCHANGEABLE
Voltmeter
5950-00-962-7312 INTERCHANGEABLE
Transformer,power Autotransforme
6130-01-253-6767501B INTERCHANGEABLE
Power Supply
Ametek Programmable Power, Inc.
Cross-Reference Index
Part NumberManufacturer
501SPM Zf Off-Highway Solutions Minnesota Inc (USA)
501B PRIMARY Zf Off-Highway Solutions Minnesota Inc (USA)
L1649-7 Pettibone Llc (USA)
Related Parts
5961-00-061-4588INTERCHANGEABLE
HOLDER,SEMICONDUCTOR DEVICE
501
5950-00-087-0431INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
6625-00-948-3011INTERCHANGEABLE
VOLTMETER
5950-00-962-7312INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
6130-01-253-6767INTERCHANGEABLE
POWER SUPPLY
501B

Frequently Asked Questions

What is NSN 2530-00-392-4783?

NSN 2530-00-392-4783 is a Cylinder Assembly,hydraulic Brak, manufactured by Zf Off-Highway Solutions Minnesota Inc, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-392-4783?

NSN 2530-00-392-4783 has 3 cross-referenced part numbers: 501SPM (Zf Off-Highway Solutions Minnesota Inc), 501B (Zf Off-Highway Solutions Minnesota Inc), L1649-7 (Pettibone Llc).

What NSN replaces 2530-00-392-4783?

There are 5 known substitutes for 2530-00-392-4783: 5961-00-061-4588, 5950-00-087-0431, 6625-00-948-3011 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 501B?

Key specifications for 501B: First Piston Rod End Thread Series Designator: UNF; Port Location and Quantity: 1 CYLINDER HEAD END; Mounting Facility Thread Direction: RIGHT-HAND; Straight Bore Inside Diameter: 1.250 INCHES NOMINAL IN. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-392-4783 still in active supply?

NSN 2530-00-392-4783 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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