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February 2001
VILTER MANUFACTURING CORPORATION
SECTION 105-R
Replaces
PAGE 22
February 1985
440 VMC COMPRESSORS
PISTON AND CONNECTING ROD ASSEMBLY AND SAFETY HEAD REPLACEMENT PARTS
1000 RPM HIGH STAGE AND TWO-STAGE COMPRESSORS,
AND 1200 RPM BOOSTER COMPRESSORS
NO. REQ. PER COMPRESSOR SERIAL NO.
ITEM DESCRIPTION
SINGLE STAGE
TWO-
STAGE
PART
NO. OF CYL.
2 4 6 8 12 16 6 12 FROM THRU NUMBER
501 Piston (Flat,AL) Rings & Pin Kit 2 4 6 8 - - - - 6 12 3068 Present KT213
Thru Piston (Flat,AL), Rings & Pin Kit - - - - - - - - 12 16 - - - - 2656 Present KT213
505
501 Piston (Flat,AL) & Conn Rod Assy Kit 2 4 6 8 - - - - 6 12 3068 Present KT478
Thru Piston (Flat,AL) & Conn Rod Assy Kit - - - - - - - - 12 16 - - - - 2656 Present KT478
512
501 Piston Ring, Compression 4 8 12 16 24 32 12 24 0 Present 31989M
502 Piston Ring, Oil 2 4 6 8 12 16 6 12 0 Present 31989N **
503 Snap Ring, Piston Pin 4 8 12 16 24 32 12 24 0 Present 33244A
506 Connecting Rod Assy with Bearings Kit 2 4 6 8 12 16 6 12 0 Present KT463
Thru 512
510 & Bearing Half & Lock Nut Kit (Std. Size) 2 4 6 8 12 16 6 12 0 Present KT512
511 Bearing Half & Lock Nut Kit (Undersize) 2 4 6 8 12 16 6 12 0 Present KT513
506 Bushing, Piston Pin 2 4 6 8 12 16 6 12 0 Present 31896B #
507 Connecting Rod and Cap 2 4 6 8 12 16 6 12 0 Present Order Kit
509 Nut, Plain, Hex
3
/
8
”-24UNF 4 8 12 16 24 32 12 24 0 Present 2027A
510 Nut, Lock,
3
/
8
” Connecting Rod 4 8 12 16 24 32 12 24 0 Present 2028A
511 Bearing Half, Conn. Rod (w/o Groove)
Standard Size 4 8 12 16 24 32 12 24 0 Present KT512 ++
0.015” Undersize 4 8 12 16 24 32 12 24 0 Present KT513A
0.030” Undersize 4 8 12 16 24 32 12 24 0 Present KT513 ++
512 Bolt, Connecting Rod 4 8 12 16 24 32 12 24 0 Present 31955A
513 Safety Head Assembly, Ammonia
Thru (for Helical Springs) 2 4 6 8 - - - - 6 12 2199+ Present A32695C
518 (for Helical Springs) - - - - - - - - 12 16 - - - - 2656 Present A32695C
513 Safety Head Assembly, R12 and R22
Thru (for Helical Springs) 2 4 6 8 - - - - 6 12 2199+ Present A32695D
518 (for Helical Springs) - - - - - - - - 12 16 - - - - 2656 Present A32695D
513 Lock Nut,
3
/
8
”, Valve Retaining 2 4 6 8 - - - - 6 12 0 Present 1776B
513 Lock Nut,
3
/
8
”, Valve Retaining - - - - - - - - 12 16 - - - - 2656 Present 1776B
514 Washer, Diaphragm Valve 2 4 6 8 - - - - 6 12 0 Present 31990B
514 Washer, Diaphragm Valve - - - - - - - - 12 16 - - - - 2656 Present 31990B
515 Valve, Diaphragm Discharge 6 12 18 24 - - - - 18 36 0 Present 31939B
515 Valve, Diaphragm Discharge - - - - - - - - 36 48 - - - - 2656 Present 31939B
516 Spacer, Diaphragm Valve 2 4 6 8 - - - - 6 12 0 Present 31990A
516 Spacer, Diaphragm Valve - - - - - - - - 12 16 - - - - 2656 Present 31990A
517 † Safety Head (for Helical Springs)
Ammonia
2 4 6 8 - - - - 6 12 2199+ Present 33531B
517 † Safety Head (for Helical Springs)
Ammonia
- - - - - - - - 12 16 - - - - 2656 Present 33531B
517 † Safety Head (for Helical Springs) R12 &
R22
2 4 6 8 - - - - 6 12 2199+ Present 33532B
517 † Safety Head (for Helical Springs) R12 &
R22
- - - - - - - - 12 16 - - - - 2656 Present 33532B
518 Screw, Valve Retaining (60°) 2 4 6 8 - - - - 6 12 2656 13490 31964A
518 † Screw, Valve Retaining (82°) 2 4 6 8 - - - - 6 12 1349 Present 1527B
518 Screw, Valve Retaining (60°) - - - - - - - - 12 16 - - - - 2656 13490 31964A
518 † Screw, Valve Retaining (82°) - - - - - - - - 12 16 - - - - 13491 Present 1527B
NOTES:
* The latest design for cast iron flat top pistons utilizes a set of three compression rings (Part No. 31989M) and can be used in a
compressor having cast iron pistons with two compression rings.
#, **, ++, † See note with same symbol on page 21.
+ See note with same symbol on page 23.
A. Abbreviation C.I. = Cast Iron Pistons; Al = Aluminum Pistons.