PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

684835R91Cylinder Assembly,hydraulic Brak

Navistar Intl Corp Truck Br Ohio Plant · NSN 2530-00-163-0192 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-163-0192 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-163-0192. Primary manufacturer part number: 684835R91.
Features
  • Cylinder Assembly,hydraulic Brak — FSC 2530
  • Material: STEEL BODY
  • Material: STEEL BODY
  • Mounting Facility Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Mounting Facility Thread Diameter: 0.312 INCHES NOMINAL IN
  • Design Characteristics: SINGLE ACTING SINGLE CYLINDER
  • Mounting Facility Thread Diameter: 0.312 INCHES NOMINAL IN
  • First Piston Rod End Style: SLOT TYPE LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Applications requiring Steel Body construction
General Description

The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-163-0192, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Navistar Intl Corp Truck Br Ohio Plant. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 25 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-163-0192
Primary Part Number684835R91
Item NameCylinder Assembly,hydraulic Brak
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerNavistar Intl Corp Truck Br Ohio Plant
StatusCANCELLED
MaterialSTEEL BODY
MaterialSTEEL BODY
Mounting Facility Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Mounting Facility Thread Diameter0.312 INCHES NOMINAL IN
Design CharacteristicsSINGLE ACTING SINGLE CYLINDER
Mounting Facility Thread Diameter0.312 INCHES NOMINAL IN
First Piston Rod End StyleSLOT TYPE LOCATION NOT OTHERWISE SPECIFIED
Port Thread Class2B LOCATION NOT OTHERWISE SPECIFIED
Port Thread Quantity Per Inch24 LOCATION NOT OTHERWISE SPECIFIED
Bore Diameter1.750 INCHES NOMINAL IN
Mounting ProvisionTHREADED MOUNTING HOLES
Port Thread Diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Port Thread Series DesignatorUNS LOCATION NOT OTHERWISE SPECIFIED
Mounting Facility Thread Length0.605 INCHES NOMINAL IN
Port Location and Quantity1 CENTER SECTION
Bleeding Feature Quantity1
Features ProvidedRUBBER BOOT
Mounting PositionRIGHT AND LEFT
Mounting Facility Thread Quantity Per Inch18
Extended Length8.750 INCHES NOMINAL IN
Bore TypeSTRAIGHT
Port StyleSWIVEL NUT, INVERTED FLARE LOCATION NOT OTHERWISE SPECIFIED
Mounting Facility Thread Class2B
First End Fork Width0.324 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Mounting Facility Thread DirectionLEFT-HAND
Mounting Facility Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Seat Angle in Deg12.0 LOCATION NOT OTHERWISE SPECIFIED
Mounting Type and LocationFLANGE CENTER SECTION
Design CharacteristicsSINGLE ACTING SINGLE CYLINDER
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3455-00-231-351458-10110 INTERCHANGEABLE
Cutter,milling,half Side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5360-00-254-136626172 INTERCHANGEABLE
Spring,helical,compression
Briggs and Stratton Corp
5360-00-275-352626172 INTERCHANGEABLE
Spring
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
2810-00-396-4087172396 INTERCHANGEABLE
Pipe Asy
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
2530-00-690-2086FC19745 INTERCHANGEABLE
Link,wheel Cylinder,hydraulic Br
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5940-00-864-9562RB14-6F INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
5340-01-357-725226172 INTERCHANGEABLE
Cover,access
Allied Systems Company Dba Allied Systems Co
2530-01-545-950726172 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Fascan International, Inc.
Cross-Reference Index
Part NumberManufacturer
C5TZ-2261-A Ford Motor Company (USA)
3772245 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
W26172 Allparts Inc (USA)
C5TZ-2261-A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
WC26172 Trw Inc Replacement Parts Div (USA)
3772245 General Motors Llc Dba General Motors Llc (USA)
26172 Echlin Inc (USA)
1921101 Chrysler Corp Hamtramck Assembly (USA)
3772245 General Motors Corp (USA)
19175796 General Motors Llc Dba General Motors Llc (USA)
3772245 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
684835R91 Navistar International Corporation Dba Navistar (USA)
684835R91 PRIMARY Navistar Intl Corp Truck Br Ohio Plant (USA)
EL-26172 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
EW26172 Eis Brake Parts Div of Standard Motor Products Inc (USA)
172-396 General Motors Corp Delco Electronics Div (USA)
FD26172 PRIMARY Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
172-396 Delco Moraine Div of General Motors Corp (USA)
3772245 General Motors Overseas Distribution Corp Div of General Motors Corp (USA)
182999 Hyster-Yale Group, Inc. (USA)
Related Parts
3455-00-231-3514INTERCHANGEABLE
CUTTER,MILLING,HALF SIDE
58-10110
5360-00-254-1366INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
26172
5360-00-275-3526INTERCHANGEABLE
SPRING
26172
2810-00-396-4087INTERCHANGEABLE
PIPE ASY
172396
2530-00-690-2086INTERCHANGEABLE
LINK,WHEEL CYLINDER,HYDRAULIC BR
FC19745
5940-00-864-9562INTERCHANGEABLE
TERMINAL,LUG
RB14-6F
5340-01-357-7252INTERCHANGEABLE
COVER,ACCESS
26172
2530-01-545-9507INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
26172

Frequently Asked Questions

What is NSN 2530-00-163-0192?

NSN 2530-00-163-0192 is a Cylinder Assembly,hydraulic Brak, manufactured by Navistar Intl Corp Truck Br Ohio Plant, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-163-0192?

NSN 2530-00-163-0192 has 27 cross-referenced part numbers: C5TZ-2261-A (Ford Motor Company), 3772245 (Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02), W26172 (Allparts Inc), C5TZ-2261-A (Ford Motor Co Ford Parts and Service Div Government Part Sales), WC26172 (Trw Inc Replacement Parts Div) and 22 more.

What NSN replaces 2530-00-163-0192?

There are 8 known substitutes for 2530-00-163-0192: 3455-00-231-3514, 5360-00-254-1366, 5360-00-275-3526 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 684835R91?

Key specifications for 684835R91: Material: STEEL BODY; Material: STEEL BODY; Mounting Facility Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Mounting Facility Thread Diameter: 0.312 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-163-0192 still in active supply?

NSN 2530-00-163-0192 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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