Navy Mounts - Ordering Information

Part Numbering Systems

Natural Frequency is the numerical prefix of the Navy type number and indicates the axial natural frequency of the mount when loaded to its specified capacity.
Design Activity is the single letter following the numerical prefix:

M = Mare island Naval Shipyard
P = Portsmouth Navel Shipyard
E = Engineering Experimental Station
B = NAVSHIPS.

Capacity is the numbers following the design activity designation and indicates the maximum rated capacity of the mount in pounds. Metal Member: If nonmagnetic construction is required, NM should be added to the end of the Navy Mount part number. Suffix "H" denotes natural rubber only (5,000 and 10,000 lbs. mounts).