Cage 4s077 state they are the oem
No other part numbers with same form, fit, and function found.
A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).
NSN 6685-00-397-0205
NSN 2925-01-632-5913
NSN 6685-00-758-5868
NSN 6130-01-118-4654
NSN 5950-00-760-6805
NSN 6685-00-038-7886
NSN 5925-01-070-4831
NSN 6135-01-568-9107
NSN 5910-01-432-3954
NSN 5905-01-627-7011
NSN 5855-01-567-5926
NSN 5950-01-500-0723