Cage 4s077 state they are the oem
No other part numbers with same form, fit, and function found.
A metallic or nonmetallic item which is rigid, flat and generally smooth. Its thickness is small in comparison to its length and width. It is designed for mounting another item and may have drilled or threaded holes or other facilities for mounting to a supporting object or surface. See support, as modified. Do not use if a more specific name applies.
NSN 5990-00-578-8850
NSN 5910-00-221-2016
NSN 5920-01-129-9638
NSN 5965-01-055-7645
NSN 5935-01-390-1528
NSN 5895-01-345-5954
NSN 6650-00-034-8438
NSN 6320-01-103-6218
NSN 5975-01-552-2441
NSN 5999-00-535-9722
NSN 6105-00-989-2310
NSN 6130-00-004-8774