PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12377Piston,hydraulic Brake,master Cy

DP Manufacturing Inc. · NSN 2530-01-345-0815 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-01-345-0815 — this item is cataloged by the U.S. Government under National Stock Number 2530-01-345-0815. Primary manufacturer part number: 12377.
Features
  • Piston,hydraulic Brake,master Cy — FSC 2530
  • Cup Protector: NOT INCLUDED
  • Surface Feature: PLAIN SURFACE
  • Largest Outside Diameter: 5.873 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: DP Manufacturing Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Piston,hydraulic Brake,master Cy, cataloged under National Stock Number 2530-01-345-0815, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is DP Manufacturing Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2530-01-345-0815
Primary Part Number12377
Item NamePiston,hydraulic Brake,master Cy
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerDP Manufacturing Inc.
StatusACTIVE
Cup ProtectorNOT INCLUDED
Surface FeaturePLAIN SURFACE
Largest Outside Diameter5.873 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-191-6222 INTERCHANGEABLE
Screw,machine
6145-00-393-40758860 INTERCHANGEABLE
Cable,power,electrical
Janor Wire & Cable Corp
2915-00-441-990812-377 INTERCHANGEABLE
Lobe,pump,fuel
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
4820-00-622-681312377 INTERCHANGEABLE
Piston and Cup Assembly
Aerco International, Inc. Dba Aerco International Inc
5985-01-043-0141 INTERCHANGEABLE
Antenna
4820-01-186-8444N12377 INTERCHANGEABLE
Disk,nozzle Pin,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4730-01-212-027612377 INTERCHANGEABLE
Coupling,pipe
Westerbeke Corporation
6115-01-507-2426 INTERCHANGEABLE
Generator,alternating Current
6525-01-575-0673100-0877-01 INTERCHANGEABLE
Cover,foam Gasket Dust Assembly,
Minxray Inc
Cross-Reference Index
Part NumberManufacturer
12377 PRIMARY DP Manufacturing Inc. (USA)
12377-G DP Manufacturing Inc. (USA)
12377 Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA)
2HD240 Oshkosh Corp (USA)
2HD240 Oshkosh Defense Llc (USA)
12377 Amz Alabama Inc. (USA)
Related Parts
5305-00-191-6222INTERCHANGEABLE
SCREW,MACHINE
6145-00-393-4075INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
8860
2915-00-441-9908INTERCHANGEABLE
LOBE,PUMP,FUEL
12-377
4820-00-622-6813INTERCHANGEABLE
PISTON AND CUP ASSEMBLY
12377
5985-01-043-0141INTERCHANGEABLE
ANTENNA
4820-01-186-8444INTERCHANGEABLE
DISK,NOZZLE PIN,VALVE
N12377
4730-01-212-0276INTERCHANGEABLE
COUPLING,PIPE
12377
6115-01-507-2426INTERCHANGEABLE
GENERATOR,ALTERNATING CURRENT
6525-01-575-0673INTERCHANGEABLE
COVER,FOAM GASKET DUST ASSEMBLY,
100-0877-01

Frequently Asked Questions

What is NSN 2530-01-345-0815?

NSN 2530-01-345-0815 is a Piston,hydraulic Brake,master Cy, manufactured by DP Manufacturing Inc., classified under FSC 2530 (No Item Name Available). Status: active.

What are the part numbers for NSN 2530-01-345-0815?

NSN 2530-01-345-0815 has 6 cross-referenced part numbers: 12377 (DP Manufacturing Inc.), 12377-G (DP Manufacturing Inc.), 12377 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 2HD240 (Oshkosh Corp), 2HD240 (Oshkosh Defense Llc) and 1 more.

What NSN replaces 2530-01-345-0815?

There are 9 known substitutes for 2530-01-345-0815: 5305-00-191-6222, 6145-00-393-4075, 2915-00-441-9908 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12377?

Key specifications for 12377: End Item Identification: 2320-01-304-2277 AND 2320-01-304-2278 PLS (PALLETIZED LOADING SYSTEM); Cup Protector: NOT INCLUDED; Surface Feature: PLAIN SURFACE; Largest Outside Diameter: 5.873 INCHES NOMINAL IN. 4 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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