A-A-59567/4
TABLE III. PIN codes for class B, style, thread, and clamp.
Ferrule
Class AA
A-A-52506 clamp
Thread
designator
coupling
Style
type designator
type
see
PIN code
(see figure 5)
A-A-59614
Short
2N
NH
shank
Short
2P
NPSH
shank
Short
shank -
2Q
NH
handles on
both
Short
shank -
2R
NPSH
handles on
A, B, C, D,
both
E, F, G, H,
R
Long
TB, SLTB
2S
NH
shank
Long
2T
NPSH
shank
Long
shank -
2U
NH
handles on
both
Long
shank -
2V
NPSH
handles on
both
Expansion
8W
NH
---
---
ring
Expansion
8X
NPSH
---
---
ring
Expansion
ring
8Y
NH
---
---
handles on
both
Expansion
ring
8Z
NPSH
---
---
handles on
both
Materials. Pin lug couplings shall be cast or machined from aluminum, copper alloy (brass), corrosion
resistant steel, or steel, see table IV.
5
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