DH-603

Consumables & Spare Parts Reference Card
EMPOWERING RESULTS

Note: Part numbers and standards’ values may change. Consult LECO for the latest information.

190-277
SCREW (2 REQ’D)

625-505-244G
BRACKET

625-505-243
HEATINGELEMENTINSULATION(2 REQUIRED)

782-425
UPPER
TUBE MOUNT
782-427
SILICONE STRIP
1 5/8” ALONG
FACE OF ARC

782-427
SILICONE STRIP
2 1/2” ALONG
FACE OF ARC

617-083
O-RING(3 REQ’D)

618-832BLOCK

625-505-138
FURNACEHEATINGELEMENT ASSY.

602-779
SCREW(2 REQ’D)

618-830BLOCK772-694SCREW(2 REQ’D)

193-008
WASHER(2 REQ’D)

789-412
CATALYSTHEATER
TUBE

617-171
TUBE

625-505-124
FRONT
GASKET

625-501-995
GROMMET

782-424
LOWER TUBE
MOUNT
625-505-133
FURNACE
INSULATION ASSY.
(MATCHED SET)625-505-252
THERMOCOUPLE
MOUNT
193-008
LOCK WASHER

772-520
O-RING(5 REQ’D)

193-055
FLAT WASHER
190-278SCREW

765-976
O-RING(2 REQ’D)

617-548REAGENT TUBE
(2 REQ’D)

704-295-109 OVER TEMP THERMOCOUPLE "K" SN £18071
621-010-842 OVER TEMP THERMOCOUPLE "S" SN ³18072778-625
SEAL(2 REQ'D)
773-913
O-RING(4 REQ'D)

625-510-222
NEEDLE PIERCER
DH603 (2 REQ'D)

602-802
O-RING(PLACE IN
STATIONARYBLOCK FORCOMBUSTION
TUBE)

775-306
SCREENFILTER

625-510-191
THERMOCOUPLE

625-510-252
SCREW(2 REQ'D)(USE 769-459
LOCTITEON MALETHREADS)625-510-626
COMBUSTION
TUBE

614-704
AIR FILTER (2 REQ’D)

Form No. 203-104-051 Rev. 9

LECO is a registered trademark of LECO Corporation

6/22/2021

OPERATING SUPPLIESOPERATION ACCESSORIES

625-510-626

619-995618-241
511-038782-508625-505-137
625-510-146
761-822760-138625-510-628

Combustion Tube

CATALYSTS AND REAGENTS
501-171-HAZ
502-878
501-081502-174-HAZ
502-176-HAZ
501-608
501-241

Anhydrone 454 g (1 lb) bottle (10-16 mesh)
Copper Sticks (100 g)
Glass Wool 454 g (1 lb) bottle
Lecosorb 500 g bottle, (20–30 mesh)
Lecosorb 500 g bottle, (8–20 mesh)
Quartz Wool 200 g bottle
Vacuum Grease 3.5 oz.

MAINTENANCE PARTS KITS

REAGENT TUBES
617-548789-412625-510-129

Glass Reagent Tube, requires one 772-520
and two 765-976 O-rings
Quartz Catalyst Heater Tube, requires two
772-520 O-rings
Glass Reagent Tube, requires two
772-520 O-rings

EVACUATED STEEL SAMPLER WITH INNERSTEEL PIN
903-9A3-184
903-9A3-194

Bar Code Reader, USB
Nut Removal Tool
Pin Tube Holder
Quartz Wool Puller/Packing Tool Assembly
Quartz Boat Tweezer
Sample Puller Assembly
Tool Kit
Tweezer
Type "K" to Type "S" Over Temp Thermocouple
Conversion Kit

3-foot Cardboard, 6-inch Non-Splash Sleevewith Anti-Skull Coat
3-foot Cardboard, 12-inch Non-Splash Sleevewith Anti-Skull Coat

104-179DH603 Maintenance Parts Kit

Please Note: Quartz Tubes are typically utilized for higher
temperature applications (i.e. catalyst tubes). Glass reagent/filter
tubes are designed for lower temperature applications. Glass tubes
should not be used in place of quartz tubes.

REFERENCE MATERIALS AND STANDARDSCurrent part numbers and values for LECO Reference
Materials and Standard (209-296) can be found athttps://www.leco.com/consumables

EVACUATED STEEL SAMPLER WITH QUARTZ
LINING
903-9B3-184
903-9B3-194

3-foot Cardboard, 6-inch Non-Splash Sleevewith Anti-Skull Coat
3-foot Cardboard, 12-inch Non-Splash Sleevewith Anti-Skull CoatEVACUATED PIN TUBES FOR RAPID SAMPLING OF MOLTEN METALSPart No.
511-036-150
511-039-150
511-037-150
511-244

Description
Standard Pin Tube
Standard Pin Tube
Precision Pin Tube
High Vacuum Tube

Dimensions
4 mm ±0.2 mm (0.159" ±0.009") ID x ~146 mm (5.75") L
3.5 mm ±0.2 mm (0.39" ±0.009") ID x ~146 mm (5.75") L
4 mm ±0.025 mm (0.159" ±0.001") ID x ~146 mm (5.75") L
6 mm (0.236") ID x 125 mm (4.92") L

Qty.
1500/pkg
1500/pkg
1500/pkg
100/pkg

501-081
GLASS
WOOL

501-608
QUARTZ
WOOL

502-174-HAZ
LECOSORB
502-878
COPPERSTICKS

501-171-HAZ
ANHYDRONE
501-608
QUARTZ
WOOL

501-081
GLASS
WOOL

789-412
CATALYSTHEATER TUBE

617-548REAGENTTUBE (GLASS)

United States: 800-292-6141 • Canada: 800-268-0215 • Other Countries: 269-985-5496
info@leco.com • www.leco.com • ISO-9001:2015 Q-994 • © 2021 LECO Corporation
EMPOWERING RESULTS

Form No. 203-104-051 Rev. 9

LECO is a registered trademark of LECO Corporation

6/22/2021