PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FD4377Cup,hydraulic Brake Cylinder

Federal Mogul Corp Sub Wagner Brake Moog Automotive Div · NSN 2530-00-537-0782 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-537-0782 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-537-0782. Primary manufacturer part number: FD4377.
Features
  • Cup,hydraulic Brake Cylinder — FSC 2530
  • Largest Outside Diameter: 1.031 INCHES MINIMUM AND 1.047 INCHES MAXIMUM IN
  • Size Designator: 1 IN. IN
  • Material: RUBBER POLYISOPRENE NATURAL CLASS NR
  • FSC Application Data: VEHICULAR BRAKES GROUP
  • Base Inside Projection: NOT INCLUDED
  • Cup Protector: INCLUDED
  • Sealing Lip Length: 0.282 INCHES NOMINAL IN
Applications
  • Applications requiring Rubber Polyisoprene Natural Class Nr construction
General Description

The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-537-0782, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-537-0782
Primary Part NumberFD4377
Item NameCup,hydraulic Brake Cylinder
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerFederal Mogul Corp Sub Wagner Brake Moog Automotive Div
StatusCANCELLED
Largest Outside Diameter1.031 INCHES MINIMUM AND 1.047 INCHES MAXIMUM IN
Size Designator1 IN. IN
MaterialRUBBER POLYISOPRENE NATURAL CLASS NR
FSC Application DataVEHICULAR BRAKES GROUP
Base Inside ProjectionNOT INCLUDED
Cup ProtectorINCLUDED
Sealing Lip Length0.282 INCHES NOMINAL IN
Base Thickness0.093 INCHES NOMINAL IN
Outer Periphery Base GrooveINCLUDED
Mounting MethodFLAT SOLID BASE
Feathered Lip FeatureNOT INCLUDED
Base Outside Diameter0.965 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3110-00-100-3563105503H INTERCHANGEABLE
Cone and Rollers,tapered Roller
Dressta North America Ltd
3030-00-528-3824 INTERCHANGEABLE
Belt,v
2530-00-537-0772FD2108 INTERCHANGEABLE
Cup,hydraulic Brake Cylinder
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5950-00-615-4285 INTERCHANGEABLE
Transformer,audio Frequency
5995-01-156-943527605 INTERCHANGEABLE
Cable Assembly,radio Frequency
Viant Collegeville Llc
1630-01-305-214227-605 INTERCHANGEABLE
Lining,friction
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5310-01-554-6005L140125-16 INTERCHANGEABLE
Washer,flat
Bae Systems Information & Electronic Systems Integration Inc.
Cross-Reference Index
Part NumberManufacturer
5450617 Delco Moraine Div of General Motors Corp (USA)
27605 Hyster-Yale Group, Inc. (USA)
27605 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
F4377 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
FD4377 PRIMARY Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
Related Parts
3110-00-100-3563INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
105503H
3030-00-528-3824INTERCHANGEABLE
BELT,V
2530-00-537-0772INTERCHANGEABLE
CUP,HYDRAULIC BRAKE CYLINDER
FD2108
5950-00-615-4285INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5995-01-156-9435INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
27605
1630-01-305-2142INTERCHANGEABLE
LINING,FRICTION
27-605
5310-01-554-6005INTERCHANGEABLE
WASHER,FLAT
L140125-16

Frequently Asked Questions

What is NSN 2530-00-537-0782?

NSN 2530-00-537-0782 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 2530-00-537-0782?

NSN 2530-00-537-0782 has 5 cross-referenced part numbers: 5450617 (Delco Moraine Div of General Motors Corp), 27605 (Hyster-Yale Group, Inc.), 27605 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), F4377 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div), FD4377 (Federal Mogul Corp Sub Wagner Brake Moog Automotive Div).

What NSN replaces 2530-00-537-0782?

There are 7 known substitutes for 2530-00-537-0782: 3110-00-100-3563, 3030-00-528-3824, 2530-00-537-0772 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FD4377?

Key specifications for FD4377: Largest Outside Diameter: 1.031 INCHES MINIMUM AND 1.047 INCHES MAXIMUM IN; Size Designator: 1 IN. IN; Material: RUBBER POLYISOPRENE NATURAL CLASS NR; FSC Application Data: VEHICULAR BRAKES GROUP. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-537-0782 still in active supply?

NSN 2530-00-537-0782 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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