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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

HLI News
New contract: 7600 ECOLCELL Chlorinators for DDG-113 and follow ships.
[More]
New Products
Portable seawater chlorinator: Port-A-Chlor 8600.
[More]
Upgraded medium-pressure air dehydrator, Model 8785, to replace our obsolete Model 7053.
Call now for more information
Customized potable water treatment systems for Iraqi 35m patrol boats ...
... or for your application!
Call now for more information
Around the World
January 2010:
HLI supporting relief efforts in Haiti
At HLI
September 2008: David Douglas joins HLI as Director of Sales, Marine Products.

Parts for Model 6995

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 Group No. Mk I Mk IA Mk II
Top Drawing No. 6995 6995 7150
Electrical Schematic Diagram 7072 7313 7072
Technical Manual: (all groups) S9514-C7-MMA-010
Part Description HLI Part No.
(NSN)		 Mk I Qty. Mk IA Qty. Mk II Qty.

Inlet Tube Assembly

 7122-G501 1 1 1
O-Ring, Main Air Inlet Union M83248/2-125
(5330-01-184-7576)		 1 1 1

Prefilter Assembly

 7003-G501 1 1 1
Prefilter Element with Gaskets 7139 1 1 1
Seal, Prefilter Housing (Shell Gasket) 7002-04 1 1 1
Top Nut Gasket 7002-03 1 1 1
O-Ring, Face, Pressure Differential Indicator Tubing Fittings M83248/2-008 2 2 2
O-Ring, Thread, Pressure Differential Indicator Tubing Fittings M83248/2-902 2 2 2
O-Ring, Face, Main Air Fittings M83248/2-019 2 2 2
O-Ring, Thread, Main Air Fittings M83248/2-912 2 2 2
Particulate Filter Screen 2653-01 1 1 1
O-Ring, Particulate Filter Screen M83248/2-116 2 2 2
Spring, Particulate Filter Screen 1015-08 1 1 1

Inlet Manifold Assembly

 7051-G501 1
7051-G502 1
7277-G501 1
7277-G502
 1
O-Ring M83248/2-015 1 1
O-Ring M83248/2-013 1 1
• O-Ring M83248/2-015 1
• O-Ring M83248/2-013 1
• Mass Flowmeter 7177-01 1
• Flowmeter Mount 7281-01 1
• O-Ring, Flowmeter Fitting Thread M83248/2-908 2
• O-Ring, Flowmeter Fitting Face M83248/2-019 2

Condensate Discharge System
Trap-Dump Assembly 7045-G501 1 1
7045-G502
 1
• Overhaul Kit, Trap Unit 4400-2/9
(4820-00-12-0079)		 ref ref ref
• O-Ring, Face, Trap Inlet Union M83248/2-015 1 1 1
• O-Ring, Thread, Trap Inlet Union M83248/2-908 1 1 1
• O-Ring, Trap Outlet Union M83248/2-017 1 1 1
• Manual Drain Valve 6380-G501 1 1 1
• O-Ring, Face, Tubing to Manual Drain Valve M83248/2-011
(5330-00-166-1081)		 2 2 2
• O-Ring, Thread, Tubing to Manual Drain Valve M83248/2-904
(5330-00-167-5172)		 2 2 2

Membrane Element Assembly
Membrane Element 7001-G501 3 3 4
O-Ring, Face, Main Air Fitting M83248/2-015 6 6 8
O-Ring, Thread, Main Air Fitting M83248/2-908 6 6 8
O-Ring, Face, Purge Air Inlet M83248/2-011
(5330-00-166-1081)		 3 3 4
O-Ring, Thread, Purge Air Inlet M83248/2-904
(5330-00-167-5172)		 3 3 4

Outlet Manifold Assembly

 7084-G501 1
7084-G503 1
7084-G502
 1
Outlet Manifold Weldment 7093-G501 1 1
7093-G502 1 1
7093-G504 1
7084-G505 1
7084-G506
 1
Overhaul Kit, Ball Valve 7056-03/07 3 ref 3 ref 3 ref
Flowmeter Sight Tube 5923-01 1 1 1
Flowmeter Guide Holder 5924-01 1 1 1
Flowmeter Float Guide 5947-G501 1 1 1
Flowmeter Float 4563
(4820-01-282-2577)		 1 1 1
O-Ring, Flowmeter Body Seal M83248/2-022 1 1 1
O-Ring, Main Air Outlet Union M83248/2-125
(5330-01-184-7576)		 1 1 1
Mass Flowmeter 7177-01 1
Flowmeter Mount 7281-G502 1

Purge Manifold Assembly

 7085-G501 1 1
7085-G502
 1
Purge Orifice Fitting 7083-073 3 3 4

Instrument Panel Assembly

 7038-G501 1
7038-G502   1
7038-G503
 1  
Purge Flowmeter 7058-G501 1 1 1
• Overhaul Kit, Purge Flowmeter 7058-05 ref ref ref
• O-Ring, Face, Purge Flowmeter In/Outlet Fittings M83248/2-013 2 2 2
Calibration Flowmeter 7059-G501 1 1 1
• Overhaul Kit, Calibration Flowmeter 7059-04 ref ref ref
• O-Ring, Face, Calibration Flowmeter In/Outlet Fittings M83248/2-011
(5330-00-166-1081)		 2 2 2
Pressure Gauge 3912-G503
(6685-01-105-2972)		 1 1 1
• O-Ring, Pressure Gauge Fitting M83248/2-008 1 1 1
Calibration Valve, Pressure Gauge 5296-G502 1  
5296-G501 1 1
• O-Ring, Calibration Valve Fittings M83248/2-008 2 2 2
Valve, Manual, Calibration/Calibration Dump 7039-G501 1 1 1
• O-Ring, Manual Valve Fitting M83248/2-904
(5330-00-167-5172)		 1 1 1
Valve, Manual, Purge Selector 7081-G501 1 1 1
• O-Ring, Face, Manual Valve Fitting M83248/2-013 3 3 3
• O-Ring, Thread, Manual Valve Fitting M83248/2-906 3 3 3
Valve, Manual, Sensor Shutoff 7082-G501 1 1 1
O-Ring, Face, Manual Valve Fitting M83248/2-013 2 2 2
O-Ring, Thread, Manual Valve Fitting M83248/2-906 2 2 3
Coupling, Dew Point Sample Connection 5083-G501
(4730-01-387-7234)		 1 1 1
Bulkhead Union, Dew Point Sample Connection 5075-A-90-4 1 1 1
Dust Cover, Dew Point Sample Connection 3965-02
(5935-01-229-8537)		 1 1 1
Humidity Sensor Housing 7040-G501 1 1 1
• O-Ring, Face, Humidity Sensor Housing Tubing Fitting M83248/2-013 2 2 2
• O-Ring, Thread, Humidity Sensor Housing Tubing Fitting M83248/2-906 2 2 2
Purge Pressure Regulator 7044-G501 1 1 1
• Repair Kit for Purge Pressure Regulator 7044-03 ref ref ref
• O-Ring, Face, Purge Pressure Regulator Tubing Fitting M83248/2-013 2 2 2
• O-Ring, Thread, Purge Pressure Regulator Tubing Fitting M83248/2-906 2 2 2
Filter Pressure Differential Indicator 4787-G504
(6685-01-222-8139)		 1 1 1
• O-Ring, Face, Pressure Differential Indicator Fittings M83248/2-011
(5330-00-166-1081)		 2 2 2
• O-Ring, Thread, Pressure Differential Indicator Fittings M83248/2-904
(5330-00-167-5172)		 2 2 2
Humidity Sensor Assembly 3905-G503
(6685-01-386-6547)		 1 1 1
• Humidity Sensor 3905-03
(6685-01-246-0261)		 1 1 1
• O-Ring, Humidity Sensor M83248/2-116 1 1 1
• Cable, Humidity Sensor 3905-06 1 1 1
• Bead, Ferrite, Humidity Sensor 6257-02 1 1 1

Electrical Panel Assembly

 7006-G501 1 1
7006-G503
 1
Lamp-Test Push Button Switch 3917-03
(5930-01-285-6665)		 1 1 1
Alarm Lamp (red) 3907-G503
(6210-01-280-3356)		 1 1 1
Power-On Lamp (white) 3907-G501
(6210-01-170-7327)		 1 1 1
• Lamp Replacement Bulb 3907-06 4 ref 4 ref 4 ref
Toggle Switch 3042-02
(5930-00-642-9188)		 2 2 2
Circuit Board, Humidity Alarm 4994-G502 1 1 1
Transformer 4863 1 1 1
Fuse 3043-12 2 2 2
Flasher 4901
(5945-01-193-0058)		 1 1 1
Potentiometer (humidity alarm controller adjusting knob) 4705-04-02 1 1 1
Potentiometer Dial ?? 1 1 1
Dew Point Meter 5639-G501 1 1
5639-G502 1
Electromagnetic Interference Filter 6777-01 1 1 1
Humidity Alarm Buzzer 6797-01 1 1 1
Resistor RCR42G682JS 1 1 1
Last updated: 10/07/09
Webmaster: Al Friend
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