Used on convection heater,nsn 4520-01-364-2433. removable union made of various materials per mil-c-2212; type "b" lub oil; packing material for union is non-asbestos, woven glass, fiber cloth impregnated with polytetrafluoroethylene
Used on hemtt family (heavy expanded mobility tactical trucks); 2320-01-442-1940, truck,cbt,(command bridge transporter). 2b 1st end bulkhead thread class weapon system essential zinc surface treated screwed unf 1st end bulkhead thread series
