PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58176R1Cup,hydraulic Brake Cylinder

Navistar International Corporation Dba Navistar · NSN 2530-00-737-6681 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-737-6681 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-737-6681. Primary manufacturer part number: 58176R1.
Features
  • Cup,hydraulic Brake Cylinder — FSC 2530
  • Tapered Hole Major Diameter: 0.815 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
  • Feathered Lip Feature: NOT INCLUDED
  • Base Outside Diameter: 1.075 INCHES MINIMUM AND 1.095 INCHES MAXIMUM IN
  • Outer Periphery Base Groove: NOT INCLUDED
  • Cup Protector: NOT INCLUDED
  • Material: RUBBER SYNTHETIC
  • Material Document and Classification: ES0216, BENDIX PRODUCTS DIV, BENDIX AVIATION CORP MFR REF SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Rubber Synthetic construction
General Description

The Cup,hydraulic Brake Cylinder, cataloged under National Stock Number 2530-00-737-6681, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Navistar International Corporation Dba Navistar. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 19 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2530-00-737-6681
Primary Part Number58176R1
Item NameCup,hydraulic Brake Cylinder
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerNavistar International Corporation Dba Navistar
StatusACTIVE
Tapered Hole Major Diameter0.815 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
Feathered Lip FeatureNOT INCLUDED
Base Outside Diameter1.075 INCHES MINIMUM AND 1.095 INCHES MAXIMUM IN
Outer Periphery Base GrooveNOT INCLUDED
Cup ProtectorNOT INCLUDED
MaterialRUBBER SYNTHETIC
Material Document and ClassificationES0216, BENDIX PRODUCTS DIV, BENDIX AVIATION CORP MFR REF SINGLE MATERIAL RESPONSE
FSC Application DataVEHICULAR BRAKES CYLINDER
Base Inside ProjectionNOT INCLUDED
Mounting MethodCENTER HOLE
Tapered Hole Minor Diameter0.770 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Largest Outside Diameter1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM IN
Sealing Lip Length0.188 INCHES NOMINAL IN
Size DesignatorNONE
Thru-Hole Length0.225 INCHES MINIMUM AND 0.240 INCHES MAXIMUM IN
Base Thickness0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-100-6161 INTERCHANGEABLE
Ball,bearing
4140-00-404-5257 INTERCHANGEABLE
Impeller,fan,centrifugal
3040-00-470-6750B47530 INTERCHANGEABLE
Hub,body
Brunswick Corp Dba Mercury Marine Div Mercury Marine
2835-00-758-5436373780 INTERCHANGEABLE
Retainer,bearing
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
6680-01-087-557947530 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5950-01-154-2413 INTERCHANGEABLE
Transformer,pulse
5330-01-558-3111951788 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Caterpillar Inc Div Caterpillar Defense
5930-01-700-8215262212G1 INTERCHANGEABLE
Switch,rotary
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
58176R1 Navistar International Corporation Dba Navistar (USA)
951788 Clark Equipment Co (USA)
7376681 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
0853556700 Arquus (FRA)
B262212 Garrett Motion France a (FRA)
951788 Dana Off Highway Products, Llc (USA)
KC8907 Diamond Reo Truck Co (USA)
262212 Garrett Motion France a (FRA)
262212 Bendix France Division Rechanges Et Equipements Autos (FRA)
132974 Daf Trucks N.v. (NLD)
951788 Vme Americas Inc Sub of Vme Group N V (USA)
47530 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
2530007376681 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
373780 Bendix Corp the Brake and Steering Div (USA)
0853556700 R.v.i. (renault Vehicules Industriels) Dpt Saviem Sa (FRA)
58176R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
2250514 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
58176R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
105892 Iveco France Sa (FRA)
2250514 General Motors Llc Dba General Motors Llc (USA)
Related Parts
3110-00-100-6161INTERCHANGEABLE
BALL,BEARING
4140-00-404-5257INTERCHANGEABLE
IMPELLER,FAN,CENTRIFUGAL
3040-00-470-6750INTERCHANGEABLE
HUB,BODY
B47530
2835-00-758-5436INTERCHANGEABLE
RETAINER,BEARING
373780
6680-01-087-5579INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
47530
5950-01-154-2413INTERCHANGEABLE
TRANSFORMER,PULSE
5330-01-558-3111INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
951788
5930-01-700-8215INTERCHANGEABLE
SWITCH,ROTARY
262212G1

Frequently Asked Questions

What is NSN 2530-00-737-6681?

NSN 2530-00-737-6681 is a Cup,hydraulic Brake Cylinder, manufactured by Navistar International Corporation Dba Navistar, classified under FSC 2530 (No Item Name Available). Status: active.

What are the part numbers for NSN 2530-00-737-6681?

NSN 2530-00-737-6681 has 20 cross-referenced part numbers: 58176R1 (Navistar International Corporation Dba Navistar), 951788 (Clark Equipment Co), 7376681 (U S Army Tank Automotive Command Amsta-Im-Mm), 0853556700 (Arquus), B262212 (Garrett Motion France a) and 15 more.

What NSN replaces 2530-00-737-6681?

There are 8 known substitutes for 2530-00-737-6681: 3110-00-100-6161, 4140-00-404-5257, 3040-00-470-6750 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58176R1?

Key specifications for 58176R1: Tapered Hole Major Diameter: 0.815 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN; Feathered Lip Feature: NOT INCLUDED; Base Outside Diameter: 1.075 INCHES MINIMUM AND 1.095 INCHES MAXIMUM IN; Outer Periphery Base Groove: NOT INCLUDED. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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