PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

87897R91Cylinder Assembly,hydraulic Brak

Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ · NSN 2530-00-848-6443 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-848-6443 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-848-6443. Primary manufacturer part number: 87897R91.
Features
  • Cylinder Assembly,hydraulic Brak — FSC 2530
  • Port Thread Quantity Per Inch: 20 SINGLE PORT
  • Material: STEEL BODY
  • Bleeding Feature Quantity: 1
  • Port Thread Diameter: 0.437 INCHES NOMINAL SINGLE PORT IN
  • Port Thread Class: 2B SINGLE PORT
  • Port Thread Series Designator: UNF SINGLE PORT
  • Bore Diameter: 1.000 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Body construction
General Description

The Cylinder Assembly,hydraulic Brak, cataloged under National Stock Number 2530-00-848-6443, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 12 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
NSN2530-00-848-6443
Primary Part Number87897R91
Item NameCylinder Assembly,hydraulic Brak
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerNavistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
StatusCANCELLED
Port Thread Quantity Per Inch20 SINGLE PORT
MaterialSTEEL BODY
Bleeding Feature Quantity1
Port Thread Diameter0.437 INCHES NOMINAL SINGLE PORT IN
Port Thread Class2B SINGLE PORT
Port Thread Series DesignatorUNF SINGLE PORT
Bore Diameter1.000 INCHES NOMINAL IN
Mounting Facility Thread DirectionRIGHT-HAND
Mounting Facility Thread Class2B
Mounting Facility Thread Diameter0.313 INCHES NOMINAL IN
Mounting Provision Arrangement StyleTWO HOLE
Mounting ProvisionTHREADED MOUNTING HOLES
Center to Center Distance Between Mounting Provisions2.125 INCHES NOMINAL IN
Mounting Facility Thread Length0.500 INCHES NOMINAL IN
Mounting Facility Thread Quantity Per Inch18
Mounting Facility Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Bore TypeSTRAIGHT
Design CharacteristicsSINGLE ACTING SINGLE CYLINDER
Port Location and Quantity1 CENTER SECTION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-012-9501 INTERCHANGEABLE
Screw,wood
4420-00-072-1183031-07510-000 INTERCHANGEABLE
Sight Glass Assembl
Aqua-Chem, Inc. Dba Aqua-Chem Inc
2520-00-242-3319 INTERCHANGEABLE
Hub Axle,shaft
5360-00-291-5247UH8493 INTERCHANGEABLE
Spring,helical,compression
Clayton Manufacturing Company
2520-00-360-39161K3613 INTERCHANGEABLE
Yoke,clutch
Caterpillar Inc Div Caterpillar Defense
5975-00-681-47133203 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
5935-00-910-93483135 INTERCHANGEABLE
Connector,plug,electrical
Itt Cannon Rf Products
8040-01-015-22023135 A/B INTERCHANGEABLE
Adhesive
Lord Corp
5985-01-079-0447SM-A-945407 INTERCHANGEABLE
Attenuator,variable
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
7310-01-140-56833135 INTERCHANGEABLE
Base Assembly,steam Kettle
Dover Corp Groen Div
Cross-Reference Index
Part NumberManufacturer
B7T2061A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
F9698 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
87897R91 PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
EW9698 Eis Brake Parts Div of Standard Motor Products Inc (USA)
WC9698 C E Niehoff & Co (USA)
WC9698 Trw Inc Replacement Parts Div (USA)
5461731 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
3135 Bendix Corp the (USA)
FD9698F Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
W9698 Airtex Products Div of Uis Inc (USA)
5461731 General Motors Llc Dba General Motors Llc (USA)
9698 Echlin Inc (USA)
B7T2061A Ford Motor Company (USA)
Related Parts
5305-00-012-9501INTERCHANGEABLE
SCREW,WOOD
4420-00-072-1183INTERCHANGEABLE
SIGHT GLASS ASSEMBL
031-07510-000
2520-00-242-3319INTERCHANGEABLE
HUB AXLE,SHAFT
5360-00-291-5247INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
UH8493
2520-00-360-3916INTERCHANGEABLE
YOKE,CLUTCH
1K3613
5975-00-681-4713INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
3203
5935-00-910-9348INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3135
8040-01-015-2202INTERCHANGEABLE
ADHESIVE
3135 A/B
5985-01-079-0447INTERCHANGEABLE
ATTENUATOR,VARIABLE
SM-A-945407
7310-01-140-5683INTERCHANGEABLE
BASE ASSEMBLY,STEAM KETTLE
3135
5325-01-141-9602INTERCHANGEABLE
RING,RETAINING
3135
5975-01-223-6022INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
9698

Frequently Asked Questions

What is NSN 2530-00-848-6443?

NSN 2530-00-848-6443 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 2530-00-848-6443?

NSN 2530-00-848-6443 has 13 cross-referenced part numbers: B7T2061A (Ford Motor Co Ford Parts and Service Div Government Part Sales), F9698 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), 87897R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), EW9698 (Eis Brake Parts Div of Standard Motor Products Inc), WC9698 (C E Niehoff & Co) and 8 more.

What NSN replaces 2530-00-848-6443?

There are 12 known substitutes for 2530-00-848-6443: 5305-00-012-9501, 4420-00-072-1183, 2520-00-242-3319 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 87897R91?

Key specifications for 87897R91: Port Thread Quantity Per Inch: 20 SINGLE PORT; Material: STEEL BODY; Bleeding Feature Quantity: 1; Port Thread Diameter: 0.437 INCHES NOMINAL SINGLE PORT IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-848-6443 still in active supply?

NSN 2530-00-848-6443 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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