PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7372303Piston,hydraulic Brake

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 2530-00-737-2303 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-737-2303 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-737-2303. Primary manufacturer part number: 7372303.
Features
  • Piston,hydraulic Brake — FSC 2530
  • Length: 0.812 INCHES NOMINAL IN
  • Steel Insert: INCLUDED
  • FSC Application Data: SERVICE BRAKES,TRUCKS
  • Material: ALUMINUM
  • Surface Condition: PLAIN W/CUP RETAINING SOCKET
  • Size Designator: 1-3/8 IN. IN
  • Outside Diameter: 1.373 INCHES MINIMUM AND 1.374 INCHES MAXIMUM IN
Applications
  • Applications requiring Aluminum construction
General Description

The Piston,hydraulic Brake, cataloged under National Stock Number 2530-00-737-2303, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2530-00-737-2303
Primary Part Number7372303
Item NamePiston,hydraulic Brake
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Length0.812 INCHES NOMINAL IN
Steel InsertINCLUDED
FSC Application DataSERVICE BRAKES,TRUCKS
MaterialALUMINUM
Surface ConditionPLAIN W/CUP RETAINING SOCKET
Size Designator1-3/8 IN. IN
Outside Diameter1.373 INCHES MINIMUM AND 1.374 INCHES MAXIMUM IN
Construction TypeONE-PIECE
Shoe Actuating End TypeFLAT BOTTOM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
6625-00-691-6611 INTERCHANGEABLE
Cam,dial Lock
2805-00-927-0037P534 INTERCHANGEABLE
Piston,internal Combustion Engin
Safeguard Engine Parts Inc Sub of Safeguard Industries Inc
Cross-Reference Index
Part NumberManufacturer
7372303 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
147597H1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
147597H1 Komatsu America Corp. (USA)
P534 Elgin National Industries Inc (USA)
TC856 Hbd Industries, Inc Div Hbd/thermoid Inc (USA)
11A9487 PRIMARY Napco International Llc Dba Napco International Inc (USA)
0127903-00 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
F856 PRIMARY Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
FC856 Federal Mogul Corp Sub Wagner Brake Moog Automotive Div (USA)
147597H1 Komatsu American Intl Co (USA)
Related Parts
6625-00-691-6611INTERCHANGEABLE
CAM,DIAL LOCK
2805-00-927-0037INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
P534

Frequently Asked Questions

What is NSN 2530-00-737-2303?

NSN 2530-00-737-2303 is a Piston,hydraulic Brake, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2530 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2530-00-737-2303?

NSN 2530-00-737-2303 has 10 cross-referenced part numbers: 7372303 (U S Army Tank Automotive Command Amsta-Im-Mm), 147597H1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 147597H1 (Komatsu America Corp.), P534 (Elgin National Industries Inc), TC856 (Hbd Industries, Inc Div Hbd/thermoid Inc) and 5 more.

What NSN replaces 2530-00-737-2303?

There are 2 known substitutes for 2530-00-737-2303: 6625-00-691-6611, 2805-00-927-0037. Verify interchangeability with system specifications before substitution.

What are the specifications of 7372303?

Key specifications for 7372303: Length: 0.812 INCHES NOMINAL IN; Steel Insert: INCLUDED; Special Features: END CONCAVE 0.002 IN. MAX DEEP IN; FSC Application Data: SERVICE BRAKES,TRUCKS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2530-00-737-2303 still in active supply?

NSN 2530-00-737-2303 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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