PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FD1387Cup,hydraulic Brake Cylinder

Federal Mogul Corp Sub Wagner Brake Moog Automotive Div · NSN 2530-00-618-4204 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-618-4204 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-618-4204. Primary manufacturer part number: FD1387.
Features
  • Cup,hydraulic Brake Cylinder — FSC 2530
  • Mounting Method: FLAT BASE
  • FSC Application Data: MASTER CYLINDER
  • Material: RUBBER SYNTHETIC OR RUBBER POLYISOPRENE NATURAL CLASS NR
  • Base Inside Projection: NOT INCLUDED
  • Size Designator: 1-1/2 IN. IN
  • Largest Outside Diameter: 1.531 INCHES MINIMUM AND 1.551 INCHES MAXIMUM IN
  • Base Thickness: 0.125 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Synthetic or Rubber Polyisoprene Natural Class Nr construction
General Description

The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-618-4204, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Federal Mogul Corp Sub Wagner Brake Moog Automotive Div. Government technical data includes 14 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-618-4204
Primary Part NumberFD1387
Item NameCup,hydraulic Brake Cylinder
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerFederal Mogul Corp Sub Wagner Brake Moog Automotive Div
StatusCANCELLED
Mounting MethodFLAT BASE
FSC Application DataMASTER CYLINDER
MaterialRUBBER SYNTHETIC OR RUBBER POLYISOPRENE NATURAL CLASS NR
Base Inside ProjectionNOT INCLUDED
Size Designator1-1/2 IN. IN
Largest Outside Diameter1.531 INCHES MINIMUM AND 1.551 INCHES MAXIMUM IN
Base Thickness0.125 INCHES NOMINAL IN
Cup ProtectorNOT INCLUDED
Sealing Lip Length0.188 INCHES NOMINAL IN
Feathered Lip FeatureNOT INCLUDED
Outer Periphery Base GrooveNOT INCLUDED
Mounting Hole Diameter1.000 INCHES NOMINAL IN
Base Outside Diameter1.406 INCHES NOMINAL IN
Thru-Hole Length0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5815-00-126-815774129 INTERCHANGEABLE
Lever
Telemechanics Inc
5133-00-228-1412 INTERCHANGEABLE
Drill,twist
2835-00-723-046874129 INTERCHANGEABLE
Body Assy,oil Pump
Honeywell International Inc. Div Aerospace - Torrance
5330-01-095-260174129 INTERCHANGEABLE
Gasket
Tld Ace Corp Div Tld Ace
5930-01-345-0199 INTERCHANGEABLE
Switch,rotary
5360-01-595-0751 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
10EHW15 Mack Trucks Inc Parts Opn (USA)
13357W Diamond Reo Truck Co (USA)
364744 White Motor Corp (USA)
521814 Spalla Inc (USA)
L32552 Cnh Industrial America Llc Dba Cnh America (USA)
74129 Komatsu America Corporation (USA)
FD1387 PRIMARY Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
088037 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
10A8864 Napco International Llc Dba Napco International Inc (USA)
088037 General Motors Llc Dba General Motors Llc (USA)
D74129 Komatsu America Corporation (USA)
6184204 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
521814 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
Related Parts
5815-00-126-8157INTERCHANGEABLE
LEVER
74129
5133-00-228-1412INTERCHANGEABLE
DRILL,TWIST
2835-00-723-0468INTERCHANGEABLE
BODY ASSY,OIL PUMP
74129
5330-01-095-2601INTERCHANGEABLE
GASKET
74129
5930-01-345-0199INTERCHANGEABLE
SWITCH,ROTARY
5360-01-595-0751INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION

Frequently Asked Questions

What is NSN 2530-00-618-4204?

NSN 2530-00-618-4204 is a Cup,hydraulic Brake Cylinder, manufactured by Federal Mogul Corp Sub Wagner Brake Moog Automotive Div, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-618-4204?

NSN 2530-00-618-4204 has 13 cross-referenced part numbers: 10EHW15 (Mack Trucks Inc Parts Opn), 13357W (Diamond Reo Truck Co), 364744 (White Motor Corp), 521814 (Spalla Inc), L32552 (Cnh Industrial America Llc Dba Cnh America) and 8 more.

What NSN replaces 2530-00-618-4204?

There are 6 known substitutes for 2530-00-618-4204: 5815-00-126-8157, 5133-00-228-1412, 2835-00-723-0468 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FD1387?

Key specifications for FD1387: Mounting Method: FLAT BASE; FSC Application Data: MASTER CYLINDER; Material: RUBBER SYNTHETIC OR RUBBER POLYISOPRENE NATURAL CLASS NR; Base Inside Projection: NOT INCLUDED. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-618-4204 still in active supply?

NSN 2530-00-618-4204 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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