A specially shaped fabrication of ferrous or nonferrous bulk material. It has a cross section not conforming to the letters h, i, t, or z.
NSN 6620-00-486-6443
NSN 6150-00-900-8620
NSN 6145-01-211-6591
NSN 5945-01-417-8302
NSN 4140-01-146-5409
NSN 5999-00-599-1705
NSN 5915-01-603-8164
NSN 5855-00-688-9954
NSN 4140-00-517-7902
NSN 6620-01-152-9453
NSN 2925-01-426-3410
NSN 5905-00-277-7439