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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 7301 Mk I
Low-Pressure 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. 7301
Electrical Schematic: not applicable
Technical Manual TM7301-MI-01

Part Description NSN HLI Part No. Quantity per Unit

Frame Weldment

7557-G501 1

Panel Assembly, Gauge

7859-G501 1
Panel, Gauge 7535-01 1
Gauge, Temperature 5581-02 2

Condensate Discharge Assembly

7914-G501 1
Dump, Modified Automatic 5518-G501 1
Kit, Trap Overhaul 4820-00-112-0079 4400-2/10 1 ref
Thread Piece, 1/4" IPS 35301-040C 1
Nut, 1/4" IPS 35301-040A 1
O-Ring, Drain Union M83248/2-017 1
Ring Retainer, Drain Union 3899-01 1

Fenwal Panel Assembly

7897-G501 1
Panel, Fenwal 7535-02 1
Switch, Indicator/Alarm, Temperature 6200-01 1

Miscellaneous

7537-G501 1
Standpipe Weldment 7537-G501 1
Heat Exchanger Weldment 7562-G501 1
Elbow, 1" 5075-23-16-16 1
Tube Weldment, Bent 7294-G501 1
Elbow, 1/2" 5075-23-8 1
Union Tailpiece, 1/4" IPS (water in & out) 7062-01 2
Union Nut, 1/4" HRC (water in & out) 5691-02 2
Ring, Retainer, 1/4" Union 3899-01 ref
O-Ring, 1/4" Union 83248/2-017 ref
Union Tailpiece, 1-1/2" IPS (air in & out) 7845-01 2
Ring, Retainer, 1-1/2" Union 3899-07 ref
O-Ring, 1-1/2" Union 83248/2-139 ref
Label, "Inlet Air" 4472-116 1
Label, "Outlet Air" 4472-117 1
Label, "Inlet Water" 4472-93 1
Label, "Outlet Water" 4472-85 1
Label, "Inlet Water Temp" 4472-81 1
Label, "Outlet Water Temp" 4472-91 1
Label, "Outlet Air Temp" 4472-87 1
Label, "Waste Drain" 4472-15 1
Label, Flow Schematic 7686-01 1

Last updated: 03/19/2008
Webmaster: Al Friend
© 2003-2008 Howell Laboratories, Inc. All rights reserved.