18MMX1.5 ED HOLLOW HEX PLUG CAPTIVE SEAL

Description & Features

Manufactured from straight steel, this M18x1.5 male metric plug is designed to seal hydraulic ports and circuit ends where a secure, leak-free closure is required. The 18MMX1.5 ED Hollow Hex Plug Captive Seal belongs to Brennan Industries' 8555-H-ED series and uses an ED captive seal configuration with an NBR O-ring, providing reliable sealing performance in standard hydraulic fluid applications.

The hex drive head measures 8.0 mm across the flats, with a plug body diameter of 24.0 mm. The captive seal design keeps the O-ring retained during installation, reducing the risk of seal displacement. Solid thread construction and male metric ED thread type make this plug well-suited for use with metric-ported hydraulic components and manifolds where ED-style sealing is specified.

SKU: 8555-H18-O

Supplier Part Number (MPN): 8555-H18-O

Specifications

Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
Supplier Part Number
8555-H18-O
Product Weight
0.99 lbs

Product Questions & Answers (1)

Question by: Dustin B on Dec 4, 2025, 3:24 PM
What's the body diameter on this plug?
Answer by: Customer Support on Dec 6, 2025, 7:31 AM
The plug body diameter measures 24.0 mm.