Thread data

ORB adjustable thread chart and dimensions

Male SAE straight thread stud with a lock nut, backup washer and O ring. Thread the fitting in, aim it, then run the lock nut down so the O ring seals in the port chamfer. Used on elbows, tees and crosses that must point a certain way.

Standard: SAE J1926 adjustable stud end
Seals by: O ring, backup washer and lock nut
Used for: Elbows and tees that are aimed first, then locked
Sizes: -2 to -32

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ORB adjustable dimensions

The dimensions we machine to. Pressure values are nominal working ratings for steel at room temperature, with the tube clamped.

Size	Thread	Tube OD	Pitch dia	Minor dia, male	Minor dia, female	Male thread length	Tap drill	O ring	Lock nut	Backup washer	Adjustable thread length	Rated to
-2	5/16-24 UNF	3.17 mm	7.25 mm	6.64 mm	6.79 mm	7.92 mm	17/64 (6.88 mm)	AS568-902, 90A	1/2 hex × 4.06 mm	1.52 mm thick	15.04 mm	6,000 psi
-3	3/8-24 UNF	4.76 mm	8.84 mm	8.23 mm	8.38 mm	8.74 mm	21/64 (8.47 mm)	AS568-903, 90A	9/16 hex × 4.06 mm	1.52 mm thick	15.85 mm	6,000 psi
-4	7/16-20 UNF	6.35 mm	10.29 mm	9.55 mm	9.74 mm	9.91 mm	25/64 (9.84 mm)	AS568-904, 90A	11/16 hex × 4.45 mm	1.52 mm thick	17.40 mm	6,000 psi
-5	1/2-20 UNF	7.94 mm	11.88 mm	11.14 mm	11.33 mm	9.91 mm	29/64 (11.43 mm)	AS568-905, 90A	3/4 hex × 5.08 mm	1.52 mm thick	18.03 mm	6,000 psi
-6	9/16-18 UNF	9.52 mm	13.37 mm	12.56 mm	12.76 mm	11.51 mm	1/2 (12.88 mm)	AS568-906, 90A	13/16 hex × 5.71 mm	1.52 mm thick	20.27 mm	6,000 psi
-8	3/4-16 UNF	12.70 mm	18.02 mm	17.10 mm	17.33 mm	13.89 mm	11/16 (17.46 mm)	AS568-908, 90A	1 1/8 hex × 7.62 mm	1.52 mm thick	24.56 mm	6,000 psi
-10	7/8-14 UNF	15.88 mm	21.05 mm	20.00 mm	20.26 mm	15.47 mm	51/64 (20.41 mm)	AS568-910, 90A	1 1/4 hex × 8.89 mm	1.52 mm thick	27.41 mm	6,000 psi
-12	1 1/16-12 UN	19.05 mm	25.61 mm	24.39 mm	24.70 mm	18.26 mm	63/64 (24.87 mm)	AS568-912, 90A	1 1/2 hex × 10.79 mm	1.52 mm thick	32.11 mm	6,000 psi
-16	1 5/16-12 UN	25.40 mm	31.96 mm	30.74 mm	31.05 mm	18.26 mm	1 15/64 (31.22 mm)	AS568-916, 90A	1 7/8 hex × 13.33 mm	1.52 mm thick	34.65 mm	5,000 psi
-20	1 5/8-12 UN	31.75 mm	39.90 mm	38.68 mm	38.98 mm	18.26 mm	1 35/64 (39.16 mm)	AS568-920, 90A	2 1/4 hex × 16.51 mm	1.52 mm thick	37.82 mm	4,000 psi
-24	1 7/8-12 UN	38.10 mm	46.25 mm	45.03 mm	45.33 mm	18.26 mm	1 51/64 (45.51 mm)	AS568-924, 90A	2 5/8 hex × 19.05 mm	1.52 mm thick	40.36 mm	3,000 psi
-32	2 1/2-12 UN	50.80 mm	62.13 mm	60.90 mm	61.21 mm	18.26 mm	2 27/64 (61.38 mm)	AS568-932, 90A	3 7/16 hex × 25.40 mm	1.52 mm thick	46.71 mm	2,500 psi

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