Brake Syatem Stock Parts
Part#	Quan	Description	Supplier	Reference
		CROSS COMPOUND AIR COMPRESSOR
HS530	2	Output Check Valve (See www.clippard.com to find local distruibutor)	Clippard MCV-1BB	Des Comp II
	2	Output Caheck Valve seal  --- Use HS539
		Improved design using piston check valve	McMaster-Carr #7768K15	Des Comp V
HS531	2	Input Check Valve (order a couple spare valves)	Clippard MCV-1BB	Des Comp II
		Improved design using piston check valve	McMaster-Carr #7768K15	Des Comp V
HS532	2	Inter Cylinder Check Valve	Clippard MCV-1BB	Des Comp II
		Improved design using piston check valve	McMaster-Carr #7768K15	Des Comp V
HS533	6	Check Valve Plug Seal #109 (1/2" OD-5/16" ID) Buna-N O-Ring (order spares)	McMaster-Carr	Des Comp II
HS534	8	Piston Rod Seals #011 (7/16" OD- 5/16" ID) Viton O-Ring (order spares)	McMaster-Carr	Des Comp III
HS535	1	Large Air Piston Ring #218 (1.5" OD - 1.25" ID) Buna-N O-Ring (order spares)	McMaster-Carr	Des Comp III
HS536	1	Large Steam Piston Ring #222 (1.75" OD - 1.5" ID) Viton O-Ring (order spares)	McMaster-Carr	Des Comp III
HS537	2	Small Piston Ring #212 (1.125" OD - 0.875" ID) Viton O-Ring (order spares)	McMaster-Carr	Des Comp III
HS538	7	Valve Ring #010 (3/8" OD - 1/4" ID) Viton O-Ring (order spares)	McMaster-Carr	Des Comp IV
HS539	2	Reversing Valve Rod Seal #006 (1/4" OD-1/8" ID) Viton O-Ring (order spares)	McMaster-Carr	Des Comp IV
HS540	~20	3/8" long # 2-56 FH brass screws - hold parts together while soldering	McMaster-Carr
HS531	~20	3/8" long # 4-40 FH brass screws - attach alignment washers & bushes	McMaster-Carr
HS542	56	Head Screws .4-40 stailess steel socket head 3/8" long (order spares)	McMaster-Carr
HS542	8	Head Screws .4-40 stailess steel socket head 5/8" long (order spares)	McMaster-Carr
HS543	64	Head Screw Nuts, 4-40 stailess steel small pattern (order spares)	McMaster-Carr
HS544	12	Valve Cover Screws s .2-56 stailess steel socket head 3/8" long (order spares)	McMaster-Carr
HS545	1 sq ft	1/16" Thick Gasket Material, McMaster-Carr #9402K21	McMaster-Carr	Con Comp III