PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

75083R91Cylinder Assembly,hydraulic Brak

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2530-00-594-5188 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-594-5188 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-594-5188. Primary manufacturer part number: 75083R91.
Features
  • Cylinder Assembly,hydraulic Brak — FSC 2530
  • Mounting Facility Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Mounting Position: RIGHT
  • Material: IRON CAST BODY
  • Center to Center Distance Between Mounting Provisions: 1.625 INCHES NOMINAL IN
  • Mounting Type and Location: FLANGE CENTER SECTION
  • Bore Type: STRAIGHT
  • Mounting Facility Thread Length: 0.500 INCHES NOMINAL IN
Applications
  • Applications requiring Iron Cast Body construction
General Description

The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-594-5188, 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 Melrose Park Engine Plant Location /melrose Park/. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-594-5188
Primary Part Number75083R91
Item NameCylinder Assembly,hydraulic Brak
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusCANCELLED
Mounting Facility Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Mounting PositionRIGHT
MaterialIRON CAST BODY
Center to Center Distance Between Mounting Provisions1.625 INCHES NOMINAL IN
Mounting Type and LocationFLANGE CENTER SECTION
Bore TypeSTRAIGHT
Mounting Facility Thread Length0.500 INCHES NOMINAL IN
Bleeding Feature Quantity1
Port Location and Quantity1 CENTER SECTION
Mounting Provision Arrangement StyleTWO HOLE
Port StyleINVERTED FLARE SINGLE PORT
Mounting Facility Thread DirectionRIGHT-HAND
Seat Angle in Deg42.0 SINGLE PORT
Port Thread Quantity Per Inch24 SINGLE PORT
Port Thread Diameter0.438 INCHES NOMINAL SINGLE PORT IN
Mounting Facility Thread Class2B
Design CharacteristicsSINGLE ACTING SINGLE CYLINDER
Port Thread Class2B SINGLE PORT
Port Thread Series DesignatorUNS SINGLE PORT
Mounting Facility Thread Quantity Per Inch18
Body Outside Diameter1.500 INCHES NOMINAL IN
Mounting ProvisionTHREADED MOUNTING HOLES
Bore Diameter1.125 INCHES NOMINAL IN
Mounting Facility Thread Diameter0.312 INCHES NOMINAL IN
Features ProvidedBLEEDER VALVES AND RUBBER BOOT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6220-00-050-019130-0016 INTERCHANGEABLE
Light,navigational,aircraft
Grimes Aerospace Company
5950-00-062-5927 INTERCHANGEABLE
Transformer,radio Frequency
3110-00-100-6160 INTERCHANGEABLE
Ball,bearing
2240-00-160-202775751 INTERCHANGEABLE
Collector,dirt
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5360-00-291-5477D1-887 INTERCHANGEABLE
Spring,helical,compression
Kaydon Custom Filtration Corporation
5905-00-447-9204 INTERCHANGEABLE
Resistor,variable,wire Wound,non
4920-00-533-0983 INTERCHANGEABLE
Test Set,control-in
3120-00-709-7424 INTERCHANGEABLE
Bearing,sleeve
5950-00-726-5504 INTERCHANGEABLE
Transformer,power
5935-00-763-75369341 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
Cross-Reference Index
Part NumberManufacturer
75083R91 PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
75751 PRIMARY Dressta North America Ltd (USA)
D75751 Komatsu America Corporation (USA)
FD9341 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
WC9341 C E Niehoff & Co (USA)
3557 Bendix Corp the (USA)
W9341 Airtex Products Div of Uis Inc (USA)
172-670 Delco Moraine Div of General Motors Corp (USA)
300016 Allied Automotive Allied Aftermarket Div (USA)
5469013 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
75751 Komatsu America Corporation (USA)
WC9341 Trw Inc Replacement Parts Div (USA)
F9341 PRIMARY Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
5461481 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
EW9341 Eis Brake Parts Div of Standard Motor Products Inc (USA)
FD9341B Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
5469013 General Motors Llc Dba General Motors Llc (USA)
9341 Echlin Inc (USA)
Related Parts
6220-00-050-0191INTERCHANGEABLE
LIGHT,NAVIGATIONAL,AIRCRAFT
30-0016
5950-00-062-5927INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
3110-00-100-6160INTERCHANGEABLE
BALL,BEARING
2240-00-160-2027INTERCHANGEABLE
COLLECTOR,DIRT
75751
5360-00-291-5477INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
D1-887
5905-00-447-9204INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
4920-00-533-0983INTERCHANGEABLE
TEST SET,CONTROL-IN
3120-00-709-7424INTERCHANGEABLE
BEARING,SLEEVE
5950-00-726-5504INTERCHANGEABLE
TRANSFORMER,POWER
5935-00-763-7536INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
9341
5360-00-790-2688INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3557
1650-00-790-9726INTERCHANGEABLE
BUSHING,COMPENSATOR

Frequently Asked Questions

What is NSN 2530-00-594-5188?

NSN 2530-00-594-5188 is a Cylinder Assembly,hydraulic Brak, manufactured by Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-594-5188?

NSN 2530-00-594-5188 has 18 cross-referenced part numbers: 75083R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 75751 (Dressta North America Ltd), D75751 (Komatsu America Corporation), FD9341 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), WC9341 (C E Niehoff & Co) and 13 more.

What NSN replaces 2530-00-594-5188?

There are 12 known substitutes for 2530-00-594-5188: 6220-00-050-0191, 5950-00-062-5927, 3110-00-100-6160 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 75083R91?

Key specifications for 75083R91: Mounting Facility Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Mounting Position: RIGHT; Material: IRON CAST BODY; Center to Center Distance Between Mounting Provisions: 1.625 INCHES NOMINAL IN. 26 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-594-5188 still in active supply?

NSN 2530-00-594-5188 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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