Unified Screw Threads, Standard Series
5/8-11 UNC to 7/8-32 UN, Nominal thread sizes from 5/8-11 .
http://www.efunda.com/designstandards/screws/unified.cfm?start=148&finish=227

Hydraulic Motors - 7/8-14 UNF - Grainger Industrial Supply
44 products . Shop at Grainger for Hydraulic Motors with Port Thread:7/8-14 UNF . Over 900000 MRO products - fast & convenient for the ones who get it done!
http://www.grainger.com/Grainger/hydraulic-motors/hydraulics/ecatalog/N-briZ1z0imtg



7/8"-14 UNF DISC-LOCK Dacromet 1045 Steel Safety Wheel Nut ...
Promotions & Special Interests. U.S. Sale Items . Services. Inventory & Product Services . 7/8"-14 UNF DISC-LOCK Dacromet 1045 Steel Safety Wheel Nut .
http://www.fastenal.com/web/products/detail.ex?sku=11129039&ucst=t

Amazon.com: Vermont Gage 301158040 7/8"-14 UNF 2B Go And ...
Vermont Gage's thread gages inspect the pitch diameter and the functional thread for both internal and external threaded products. All thread gages are marked .
http://www.amazon.com/Vermont-Gage-301158040-Taperlock-Assembly/dp/B0039MHJUK

45 Union Swivel - 7/8-14 UNF-2A (Male) x 7/8-14 UNF-2B (Female)
This fitting is intended to thread on to a 7/8 - 14 UNF-2A Male thread (Like the nose end of a standard Graco Airless gun). The 224399 can be found in manual .
http://graco.custhelp.com/app/answers/detail/a_id/1798/~/45%E2%B0-union-swivel---7%2F8-14-unf-2a-(male)-x-7%2F8-14-unf-2b-(female)