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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 7148 Mk I
Low-Pressure Air Dew Point Monitor/Alarm

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. 7148
Electrical Schematic: 7072
Technical Manual: TM7148-MI-00

Part Description NSN HLI Part No. Quantity per Unit

Manifold Weldment

various (depending on pipe size) 1
O-Ring, Inlet and Outlet Unions 1/2" M83248/2-023 2
3/4" 5330-01-184-7576 M83248/2-125 2
1" M83248/2-129 2
1-1/4" M83248/2-134 2
1-1/2" M83248/2-232 2

O-Ring Retainer, Inlet and Outlet Unions 1/2" 3899-03 2
3/4" 5365-01-088-3820 3899-04 2
1" 5365-01-088-3821 3899-05 2
1-1/4" 3899-06 2
1-1/2" 3899-07 2

Overhaul Kit, Ball Valve 1/2" 5948-4/6 3 ref
3/4" 4820-00-577-9624 4772-4/6 3 ref
1" 4816-2/6 3 ref
1-1/4" 6224-4/6 3 ref

Humidity Sensor Assembly

3905-G503 1
Humidity Sensor 3905-03 1
O-Ring, Thread, Humidity Sensor M83428/2-116 1
Cable Assembly 3905-06 1
Ferrite Bead 6257-02 1

Electrical Enclosure

7006-G501 1
Lamp-Test Push Button Switch 5930-01-285-6665 3917-03 1
Alarm Lamp (red) 6210-01-280-3356 3907-G503 1
Power-On Lamp (white) 6210-01-170-7327 3907-G501 1
Lamp Replacement Bulb 3907-06 4 ref
Toggle Switch 5930-00-642-9188 3042-02 2
Transformer 4863 1
Fuse 3043-12 2
Flasher 5945-01-193-0058 4901 1
Potentiometer (humidity alarm controller adjusting knob) 4705-04-02 1
Dew Point Meter 5639-G501 1
Electromagnetic Interference Filter 6777-01 1
Humidity Alarm Buzzer 6797-01 1
Resistor RCR42G682JS 1

Last updated: 03/19/2008
Webmaster: Al Friend
© 2002-2008 Howell Laboratories, Inc. All rights reserved.