As shown above, including:
PN17750 1/2"Ø shaft retainers (4)
PN20050 5/16-18 x .75 bearing screws (8)
PN24160 1"Ø x .5"Ø black tube bushings (4)
PN27550 Upper biceps weldment
PN27750 1/2"Ø pivot bars (2)
PN27900 1.25" long spring
PN27910 5/32"Ø roll pins (2)
PN29050 Instruction Label
PN50250 "L" shaped latch handles (2)
PN50370 Up/Down Latch
PN50380 Seat stop weldment
PN50410 Main Seat weldment
PN50430 5/16-18 nuts (8)
PN50580 thin washers under bearings (8)
PN50600 Ball Bearings 608ZZ (8)
PN56940 Lower Lumber Seat Back weldment
PN61880 Yellow knobs (2)
PN61890 8" long grips (2)