Steel Adapter, 1/4-18 Female NPT To 9/16-18 Male SAE O-Ring Boss (Straight Thread O-Ring), 90 deg Elbow

A 0.88	Alternate Part Numbers Alternate Part Number 206801-4-6S, Alternate Part Number 6805-06-04, Alternate Part Number 6805-06-04-NWO-FG, Alternate Part Number A206801-4-6S, Alternate Part Number C1DZ12, Alternate Part Number MI-08579758, Alternate Part Number MINO-00028X08210	B 1.31	Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6805-06-04-NWO-FG	Thread 1 1/4-18	Thread 2 9/16-18	Thread Sealant No	Product Weight 0.19 lbs

Product Questions & Answers

Will this fitting work to connect a 1/4" female pipe thread to a 9/16" male O-ring boss at a right angle?

Question by: Roy P on Jan 23, 2026, 1:42 PM

This steel adapter is made specifically for connecting a 1/4-18 female NPT to a 9/16-18 male SAE O-Ring Boss at a 90-degree angle.

Answer by: Customer Support on Jan 25, 2026, 6:07 AM

Model Number	Thread 1	Thread 2	A	B
206801-8-8S	1/2-14	3/4-16	1.23	1.73
206801-12-12S	3/4-14	1-1/16-12	1.36	2.04
206801-6-8S	3/8-18	3/4-16	1.02	1.46
6805-04-04-NWO	1/4-18	7/16-20	0.87	1.16
6805-06-04-NWO	1/4-18	9/16-18	0.88	1.31
6805-10-08-NWO	1/2-14	7/8-14	1.23	1.8
6805-12-08-NWO	1/2-14	1-1/16-12	1.24	1.94
6805-20-20-NWO	1-1/4-11-1/2	1-5/8-12	1.7	2.38