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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 7440 Mk III
Membrane 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 No. 7744
Electrical Schematic: not applicable
Technical Manual TM7440-MIII-00

Part Description NSN HLI Part No. Quantity per Unit

Frame Weldment

7756-G501 1

Membrane Assembly

7753-G501 1
Housing Weldment, Membrane 7752-G501 1
Head, Outlet 7167-02 2
Head, Purge 7666-01 2
Clamp, V 6170-01 4
Element, Membrane 7164-01 2
O-Ring, Membrane Seal M83248/2-257 2
Ring, Adjusting 7668-01 2
Screen 7667-01 2
Port 7168-01 2
O-Ring M83248/2-121 2
O-Ring M83248/2-030 2
Seal, Rectangular Ring 3958-06 2
Kit, Overhaul, Membrane 7753-16 2

Filter Assembly

7751-G501 1
Seal, Filter Housing 7700-03 1
Element, Filter 7701-G501 1
O-Ring M83248/2-226 2
O-Ring M83248/2-015 2
Kit, Overhaul, Filter 7751-07 ref

Outlet Manifold Assembly

7754-G501 1

Inlet Separator Assembly

7651-G501 1

Drain Weldment, Inlet Separator

7656-G501 1
O-Ring, Face, inlet and outlet to manual valve M83248/2-015 2
O-Ring, Thread, under union body at inlet M83248/2-908 1

Drain Weldment, Inlet Separator

7656-G501 1
O-Ring, Face, at outlet to manual valve M83248/2-015 1

Gauge Assembly, Pressure Differential

7758-G501 1
Gauge, Pressure Differential 4787-01 1
O-Ring M83248/2-011 2
O-Ring M83248/2-904 2

Gauge Assembly, Pressure

7757-G501 1
Gauge, Pressure 3912-G503 1
O-Ring M83248/2-904 1
Valve, Gauge Calibration 5296-G501 1
O-Ring M83248/2-904 1

Miscellaneous

7537-G501 1
Coupling, Modified 5083-G501 1
Cap, Dust 3965-02 1
Tubing, Purge 7670-G505 1
Orifice 7186-113 1
O-Ring, Face M83248/2-015 1
O-Ring, Thread M83248/2-908 1
Tubing, Purge 7670-G502 1
Orifice 7186-113 1
O-Ring, Face M83248/2-015 1
O-Ring, Thread M83248/2-908 1
Union Body, Bulkhead 5075-90T-4 1
Valve, 2-Way 5076-01 2
Manifold, Manual Drain 7715-01 1
Manifold, Auto Drain 7716-01 1
Drain Tubing Suite 7671 1
O-Ring, Face M83248/2-015 4
O-Ring, Thread M83248/2-908 4
Tubing Suite, Main Flow 7672 1
O-Ring, Face M83248/2-011 6
O-Ring, Thread M83248/2-904 6
Gasket, Flange 7690-01 4
O-Ring 83248/2-328 2
Insulation 3075 as req'd
Tubing Suite, Gauge Lines 7672 1
O-Ring, Face M83248/2-011 4
O-Ring, Thread M83248/2-904 4

Last updated: 03/19/2008
Webmaster: Al Friend
© 2008 Howell Laboratories, Inc. All rights reserved.