8-117 back-up ring, quantity type 2
An item designed to fit over a packing gland by mating with a surface of a second part which together will retain into a narrow groove or confined space the packing, preformed or o-ring, or an item designed to fit over a rod or shaft, to mate with a stuffing box to confine packing material. It may function as a static or dynamic seal retainer with the packing located on, around, or in the centerline direction of the rod or shaft axis. It may have holes or joints for mounting, be threaded or unthreaded. See also packing nut and packing nut, stuffing tube.
Classification: Gaskets,washers & other seals
NSN 5895-00-340-1751
NSN 7035-01-027-1718
NSN 6110-01-460-5023
NSN 5915-01-461-8233
NSN 2925-00-998-0145
NSN 6645-01-463-3024
NSN 5925-00-127-4049
NSN 6130-00-692-2916
NSN 5930-01-242-9918
NSN 6610-00-704-9754
NSN 6135-00-519-1325
NSN 5996-00-765-1401