Low noise
NSN 5996-01-175-4838
NSN 5905-01-197-8354
NSN 5975-01-651-1388
NSN 5990-01-116-2181
NSN 6240-00-266-9944
NSN 5990-01-014-1280
NSN 5945-00-978-4685
NSN 6135-01-357-0621
NSN 5990-01-631-1952
NSN 5945-01-634-0588
NSN 5895-01-602-8348
NSN 6150-01-335-7794