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Howell Laboratories, Inc.
P. O. Box 389, 188 Harrison Rd., Bridgton Maine 04009 USA
(207) 647-3327 (888) 744-8359 FAX (207) 647-8273 contracts@howelllabs.com

- An Employee-Owned Company -
Certified to ISO 9001:2000

Parts for Model 7053 Mark I Air Dehydrator

NOTE: This list does not include hardware items such as bolts, nuts, washers, and O-rings. The manufacturer uses stainless steel hardware in standard U. S. sizes, and MIL-SPEC O-rings.
Howell Laboratories, Inc. is CAGE 22501.
HLI Drawing: 7053
Electrical Schematic: 7482
Technical Manual: S9551-CG-MMC-010
Part Description NSN HLI Part No. Quantity per Unit

Electrical Enclosure Assembly

 7479-G501 1
Switch, Push Button (Lamp-Test Switch) 5930-00-471-4863 3917-01 1
Lamp, Amber 6210-01-278-4737 3907-G502 1
Lamp, White 6210-01-170-7327 3907-G501 1
Lamp, Green 3907-G504 1
• Lamp Bulb 3907-06 6
Switch, Toggle (Power-On Switch) 5930-00-642-9188 3042-02 1
Switchplate 3042-03 1
Relay, Heater 5049 1
Fuse, 10-ampere 3043-12 2
Filter, Electromagnetic Interference 6777-01 1

Membrane Cartridge Assembly

 7200-G501 1
Membrane Cartridge 7201-G501 1
O-Ring, Body Seal M83248/2-227 4
O-Ring, Cartridge Inlet/Outlet End Seal M83248/2-116 1
Snap Ring 7200-09 2
O-Ring, Fitting Face 5330-00-166-1081 M83248/2-011 2
O-Ring, Fitting Thread M83248/2-904 2

Miscellaneous
Temperature Controller Assembly 7486-G501 1
Heater Assembly 7510-01 1
Drain Trap Assembly 7492-G501 1
O-Ring 5330-00-166-1081 M83248/2-011 2
O-Ring M83248/2-004 1
O-Ring Retainer, Drain Outlet 5365-01-088-3154 3899-01 1
Inlet Tubing Assembly 7494-G501 1
• O-Ring M83248/2-212 1
Outlet Tubing Assembly 7494-G501 1
• O-Ring M83248/2-212 1
• O-Ring M83248/2-015 1
Pressure Differential Gauge 4787-01 2
Filter, Particulate 7487-01 1
• Element, Filter 7487-02 1
• O-Ring, Housing M83248/2-___ 1
Filter, Coalescing 7488-02 1
• Element, Filter 7488-02 1
• O-Ring, Housing M83248/2-___ 1
Switch, Pressure 7480-02 1
Valve, Globe 5296-01 1
Panel, Valve 5371-01 1
Tubing Assembly, Particulate Filter to Pressure Differential Gauge High-Side 7493-G501 1
• O-Ring M83248/2-015 2
• O-Ring M83248/2-908 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
• O-Ring M83248/2-904 1
Tubing Assembly, Tee to Pressure Differential Gauge 7493-G502 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
• O-Ring M83248/2-904 1
Tubing Assembly, Tee to Tee 7493-G503 1
• O-Ring M83248/2-015 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
Tubing Assembly, Filter to Tee 7493-G504 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
• O-Ring M83248/2-904 1
Tubing Assembly, Coalescing Filter to Pressure Differential Gauge Low-Side 7493-G505 1
• O-Ring M83248/2-015 2
• O-Ring M83248/2-908 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
• O-Ring M83248/2-904 1
Tubing Assembly, Coalescing Filter to Heater 7493-G506 1
• O-Ring M83248/2-013 1
• O-Ring M83248/2-906 1
Tubing Assembly, Coalescing Filter to Trap 7493-G507 1
• O-Ring 5330-00-166-1081 M83248/2-011 2
• O-Ring M83248/2-904 2
Tubing Assembly, Pressure Switch to Membrane 7493-G508 1
• O-Ring M83248/2-013 2
• O-Ring M83248/2-906 1
Tubing Assembly, Heater to Pressure Switch 7493-G509 1
• O-Ring M83248/2-013 1
• O-Ring M83248/2-906 1
Tubing Assembly, Particulate Filter to Glove Valve 7493-G510 1
• O-Ring 5330-00-166-1081 M83248/2-011 1
• O-Ring M83248/2-904 1
Insulation, Thermal, Fiberglass   1
Last updated: 03/19/2008
Webmaster: Al Friend
© 2002-2008 Howell Laboratories, Inc. All rights reserved.