Designed for use in face seal fitting assemblies, the 20 FS Cap Assembly Insert & Nut is a Brennan Industries component used to cap or protect face seal ports in hydraulic circuits. This assembly provides a clean, leak-resistant closure for unused or inactive face seal connections, helping maintain system integrity during service, transport, or reconfiguration.
Sized for a 20-series face seal fitting, this cap assembly includes both the insert and nut, supplied together as a complete unit. Brennan Industries is a recognized manufacturer of hydraulic fittings and accessories, and this component reflects their standard approach to face seal port protection across a range of industrial hydraulic applications.
SKU: FF0304-C-20
Supplier Part Number (MPN): FS0304-C-20
Alternate Part Numbers: AFF9863-20S
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Specifications
Alternate Part Numbers
Alternate Part NumberAFF9863-20S, Alternate Part Number FS0304-C-20
Class
WEB-ITEM
Brand
Brennan Industries Inc
Brand
Brennan Industries
Pack Size
1.00
UOM
EA
Supplier Part Number
FS0304-C-20
Product Weight
0.61 lbs
Product Questions & Answers (1)
Question by: Wes M on Jan 11, 2026, 8:34 PM
Is this here cap assembly just for protecting the threads on them face seal fittings?
Answer by: Customer Support on Jan 13, 2026, 9:48 AM
it's purpose-built for keeping those face seal ports clean and protected when they ain't being used, whether it's during transport, service, or just reconfiguring stuff. Keeps any gunk from messing with the system.
