Test Codes - Tube Dash Size - Thread Dash Size - RYCO Hydraulics

Tube Dash Size – Thread Dash Size

The RYCO Dash Size Part Numbering system for Connection Types associated with Inch sized tubing, follows the THREAD size rather than the TUBE size.

For example, for JIC 37° Flare; 9/16” THREAD is used with 3/8” OD TUBE.

The RYCO DASH SIZE for a JIC Hose Tail, 3/8” Hose to 3/8” Tube Size is therefore -0609 (not -0606).

The Connection Types this applies to are as follows:

  • JIC 37°
  • UNO (O Ring Boss)
  • ORFS (O Ring Face Seal)
  • SAE 45°
  • SAE Inverted Flare

BSP, NPT, JIS, Metric DIN, and SAE Flanges are not affected.

The tables below show the relationship between TUBE Dash Size and THREAD Dash Size.

JIC 37° and uno (o ring boss)

TUBE OD HOSE ID TUBE or HOSE DASH SIZE THREAD DASH SIZE THREAD SIZE
1/8 -02 -05 5/16-24 UNF
3/16 -03 -06 3/8-24 UNF
1/4 -04 -07 7/16-20 UNF
5/16 -05 -08 1/2-20 UNF
3/8 -06 -09 9/16-18 UNF
1/2 -08 -12 3/4-16 UNF
5/8 -10 -14 7/8-14 UNF
3/4 -12 -17 1.1/16-12 UN
7/8 -14 -19 1.3/16-12 UN
1 -16 -21 1.5/16-12 UN
1.1/4 -20 -26 1.5/8-12 UN
1.1/2 -24 -30 1.7/8-12 UN
2 -32 -40 2.1/2-12 UN

SAE 45°

TUBE OD HOSE ID TUBE or HOSE DASH SIZE THREAD DASH SIZE THREAD SIZE
1/8 -02 -05 5/16-24
3/16 -03 -06 3/8-24
1/4 -04 -07 7/16-20
5/16 -05 -08 1/2-20
3/8 -06 -10 5/8-18
1/2 -08 -12 3/4-16
5/8 -10 -14 7/8-14
3/4 -12 -17 1.1/16-14

SAE INVERTED FLARE

TUBE OD HOSE ID TUBE or HOSE DASH SIZE THREAD DASH SIZE THREAD SIZE
1/4 -04 -07 7/16-24
5/16 -05 -08 1/2-20
3/8 -06 -10 5/8-18
7/16 -07 -11 11/16-18

ORFS (O RING FACE SEAL)

TUBE OD HOSE ID TUBE or HOSE DASH SIZE THREAD DASH SIZE THREAD SIZE
1/4 -04 -09 9/16-18 UNF
3/8 -06 -11 11/16-16 UN
1/2 -08 -13 13/16-16 UN
5/8 -10 -16 1-14 UNS
3/4 -12 -19 1.3/16-12 UN
1 -16 -23 1.7/16-12 UN
1.1/4 -20 -27 1.11/16-12 UN
1.1/2 -24 -32 2-12 UN

RYCOLOK (STAPLELOK) SUPERLOCK (SUPER STAPLE)

NOMINAL SIZE, DN NOMINAL SIZE, inch DASH SIZE
6 1/4 -06
10 3/8 -10
12 1/2 -13
16 5/8 -16
19 3/4 -20
25 1 -25
31 1.1/4 -32
38 1.1/2 -40
51 2 -50

For RYCOLOK (STAPLELOK) and RYCO SUPERLOK (SUPER
STAPLE), the Dash Size is the Nominal Size in millimetres.

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