Brake System Machined Parts 
Part# Quantity Description Material Reference
                                                    CROSS COMPOUND AIR COMPRESSOR
HM530 1 Large Steam Cylinder 1.875" length of 1.75" OD Brass or Bronze Rod or Sleeve Bearing Comp Des II
HM531 1 Large Air Cylinder 1.875" length of 1.5" OD Brass or Bronze Rod or Sleeve Bearing Comp Des II
HM532 2 Small Cylinder 1.875" length of 1.375" OD Brass or Bronze Rod or Sleeve Bearing Comp Des II
HM533 4 Cylinder End Plates 4"length of 2.5" X 1/8" Brass Bar Stock Comp Des II
HM534 2 Mounts ~4.12" length of 0.5" X 1.25" Brass Bar Stock  Comp Des II
HM535 2 Filler  1.625" length of 0.25" X 0.5" Brass Bar Stock Comp Des II
HM536 2 Port ~1/2" length of 1/2" Dia Brass Rod Comp Des II
HM537 2 Side Steam Channels ~1" length of 1/4" Square Brass Bar Stock Comp Des II
HM538 1 Output Check Valve Housing ~2" length of 5'8" OD Brass Rod Comp Des II
HM539 1 Output Check Valve Spacer ~1.75" length of 1/4" Square Brass Bar Stock Comp Des II
HM540 6 Check Valve Plug ~1/2" length of 7/16 Brass Hex Bar & ~3/8" length of 5/8"OD Brass Rod Comp Des II
HM541 4 Check Valve Housing ~1/2" length of 5/8" OD Brass Rod Comp Des II
HM542 1 Lower Air Cylinder Head 4"length of 2.5" X 1/8" Brass Bar Stock Comp Des III
HM543 2 Rod End Cap ~3/8" Length of 9/16" OD Brass Rod Comp Des III
HM544 2 Inter Cylinder Air Channel ~1" length 1/4" Square Brass Bar Stock Comp Des III
HM545 1 Lower Air Input Channel ~1" Length of 5/16" X7/8" Brass BarStock Comp Des III
HM546 1 Large Alignment Washer ~3/32" Length of 1.5" OD Brass or Bronze Rod Comp Des III
HM547 1 Small Alignment Washer ~3/32" Length of 1.125" OD Brass or Bronze Rod Comp Des III
HM548  1 Upper Air Cylinder Head 4"length of 2.5" X 1/8" Brass Bar Stock Comp Des III
HM549 4 Packing Gland ~1/2" length of 5/8" OD Brass Rod Comp Des III
HM550 4 Insert Nut ~3/8" Length of 3/16" OD Brass Rod Comp Des III
HM551 1 Upper Air Input Channel ~1" Length of 5/16" X7/8" Brass BarStock Comp Des III
HM552 1 Large Air Alignment Bush ~0.156" Length of 1.5" OD Brass or Bronze Rod Comp Des III
HM553 1 Large Steam Alignment Bush ~0.156" Length of 1.75" OD Brass or Bronze Rod Comp Des III
HM554 2 Small Alignment Bush ~0.156" Length of 1.125" OD Brass or Bronze Rod Comp Des III
HM555 1  Lower Steam Cylinder Head 4"length of 2.5" X 1/8" Brass Bar Stock Comp Des III
HM556 1 Center Spacer ~1.25" Lengths of 1.875" OD Brass or Bronze Rod,  !.25" OD Brass or Bronze ROD & 1/8" X 1/2" Brass Bar tock  Comp Des III
HM557 1 Large Air Piston ~1/4" Length of 1.5" OD Brass or Bronze Rod Comp Des III
HM558 1 Large Steam Piston ~1/4" Length of 1.75" OD Brass or Bronze Rod Comp Des III
HM559 2 Small Piston ~1/4" Length of 1.125" OD Brass or Bronze Rod Comp Des III
HM560 2 Piston Rod ~4" Length of 5/16" OD Stainless Steel Rod Comp Des III
HM561 1 Valve Rod Retainer ~1/16" length of 3/4" OD Brass Rod Comp Des III
HM562 1  Upper Steam Head 4"length of 2.5" X 5/16" Brass Bar Stock Comp Des IV
HM563 1 Valve Housing ~3/4" Length of 2" OD Brass or Bornze Rod Comp Des IV
HM564 1 Valve Reinforcement ~1.35" length of 3/8" X 3/4" Brass Bar Stock Comp Des IV
HM565 1 Reversing Valve Pison ~0.6" Length of 3/8" OD Brass Rod Comp Des IV
HM566 1 Reversing Valve Cap ~0.3" Length of 3/4" Square Brass Bar Stock Comp Des IV
HM567 1 Main Valve Sleeve ~1.625" Length of 9/16"OD Brass Rod Comp Des IV
HM568 1 Main Valve Piston ~1.5' Length of 3/8" OD Brass Rod Comp Des IV
HM569 2 Main Valve End Cap ~1/4" Length of 1.1375" OD Brass Rod Comp Des IV
HM570 1 Upper Steam Head Large Alignment Washer ~3/32" Length of 1.75" OD Brass or Bronze Rod Comp Des IV
HM571 1 Upper Steam Head Small Alignment Washer ~3/32" Length of 1.125" OD Brass or Bronze Rod Comp Des IV
HM572 1 Reversing Valve Piston Rod ~3" Length of 1/8" OD Stainless Steel Rod Comp Des IV
HM573 1 Air Filter Canister ~1.625" length of 1.5" OD  Brass or Bronze Rod Comp Des III
HM574 1 Air Filter Canister Top ~3/16" length of 1.5" OD  Brass or Bronze Rod Comp Des III
HM575 1 Switch Body ~1" length of 9/16" Brass Hex Stock Comp Des V
HM576 1 Switch Sleeve ~1" length of 9/16" Brass Hex Stock Comp Des V
HM577 1 Switch Piston ~1" length 3/8" diameter Brass Rod Comp Des V
HM578 1 Switch Top Cover ~1" length 9/16" Diameter Brass Bar Stock Comp Des V
HM579 1 Switch Plug ~1" length of 9/16" Brass Hex Stock Comp Des V
HM580 1 Switch Knob ~1" length 3/8" diameter Brass Rod Comp Des V