Brass Adapter, 3/8-18 Female NPT Cap, 0.68 Inch Long

Alternate Part Numbers Alternate Part Number C1HN76, Alternate Part Number MI-00306612, Alternate Part Number MINO-00925F55732	Brand Danfoss Power Solutions (II LLC Aeroquip)	Brand Aeroquip	Pack Size 1.00	UOM EA	End Size 1 0.38	End Type 1 NPTF	L 0.68	Minimum Working Temperature -65	Supplier Part Number 3129X6	Thread 1 3/8-18	Thread Sealant No	Product Weight 0.03 lbs

Product Questions & Answers

Will this cap work with standard NPT fittings, or do I need to use some kind of sealant?

Question by: Roger H on Oct 22, 2025, 7:38 PM

It's designed to work directly with industry-standard 3/8-18 NPT fittings. You shouldn't need any extra sealant to get a good, leak-proof connection.

Answer by: Customer Support on Oct 24, 2025, 9:20 AM

Model Number	Thread 1	L
3129X4	1/4-18	0.59
3129X2	1/8-27	0.5
3129X6	3/8-18	0.68