3990 Manual Pressure Control Pack & 3893 Variable Volume

The 3893-802 (formerly 3893-801) variable volume is used as the variable volume in the current model 3990 Manual Pressure Control Pack:  3990 Manual Pressure Control Pack Manual

The 3893 variable volume is available for sale as a standalone variable volume:
Part Number:  3875348
Description :3893-802,PRES ADJ ASSY PRECISE, VAC/3KPSI

There is a seal kit available for the 3990 Manual Pressure Control Pack
Part Number:  4862346
Description: 3990 SERVICE,3990 SEAL REPLACEMENT KIT

Here are the contents of the seal kit. See the attached Excel file for locations.
Part Num    Qty    Description
3905708    2    54-900-5,O-RING BUNA N 90 DUROMETER, .070XC,.241OD, .101ID
3865075    1    54-700-4,O-RING:BUNA-N .070 X    .070 XSEC
3865518    3    54-704-6,O-RING:NEOPRENE,AMS006N1 1-70 (1/8 X 1/16)
3905683    1    54-704-214,O-RING:NEOPRENE,1X1 1/4X1/8 SEC
3865479    1    54-704-128,O-RING:NEOPRENE,1        1/2X3/32XSEC
3865468    2    54-704-11,O-RING NEOPRENE 5/16 X  1/16 XSEC
3905618    2    O-RING,BACKUP,TEFLON,SINGLE TURN,# MS28774-005
3904996    1    45-351,GREASE KRYTOX GRADE GPL-203 PACKAGED IN A 1/2 OUNCE SYRINGE
3896464    1    3891-1-4,BUSHING -PREC PRES CONTRLR
3896514    1    3891-1-10,TOOL VALVE ADJ -PRECISE PRES CONTRLR

To get pricing, an official quote sent, or place order can call +1.877.355.3225 and ask for our Orders group or can reach them through orders@flukecal.com