Name: Washer, Impeller 7300239 for Mission Magnum I Centrifugal Pumps
SKU: Washer 7300239
Price: 5.00 USD
Availability: InStock

Sandman^® 7300239 Impeller Washer works together with the 7415648 Impeller Lock Bolt to retain the impeller securely on the pump shaft. The washer distributes the clamping force of the lock bolt evenly across the impeller hub, helping prevent loosening, deformation, and damage during operation.

Maintenance Recommendations:
• Inspect the washer whenever the impeller is removed.
• Replace the washer if bending, cracking, corrosion, or excessive wear is observed.
• Always verify that the washer sits flat against the impeller hub during assembly.
• It is recommended to replace the washer together with the impeller lock bolt during major overhauls.

Mission Magnum I Pumps are proven as reliable, heavy-duty, low-cost slurry pumps. The 3×2×13 through 8×6×14 pumps all feature the same power end, which ensures production and reduced spare-part inventory requirements. The Mission MAGNUM I has been engineered for the toughest jobs in drilling, production, well-servicing, and industrial applications. The MAGNUM I is more powerful, more durable, and easier to maintain than any conventional pump in use today.

The Magnum has an open impeller design that contains wide-tipped vanes and a more tangential circumference of the suction allowing the pump to create a smoother flow pattern when handling abrasive fluids. The Magnum is available in high chrome, hard iron, stainless steel, and aluminum bronze fluid ends. The pumps can be unitized with electric motors, diesel engines, and hydraulic motors (horizontal, vertical, or close-coupled configuration).
Also available, Horizontal and Vertical Close Coupled Magnum.

Typical Configurations:

3x2x13       6x5x14
4x3x13       8x6x11
5x4x14       8x6x14
6x5x11       10x8x14

Typical Applications:

• Mud pumping – offshore/onshore
• Solids control
• Dredging
• Leveling or Rig Platform (ballast)
• Barite, ferric oxide, and mineral oil
• Base drilling muds
• Glass fibers
• Sugar processing
• Ash or coal conveyers
• Cement

Mission Magnum Pump Parts List:

Item	Qty	Part No.	Processing#	Description	Material
1*	1	See below	See below	Casing	Hard iron
1A	1	10399-46-1	648403012	Gasket,casing	Vellumoid
1B	12	3932-61	648402014	Nut,casing	Stl
1C	12	3862-76	648401115	Stud,casing	Stl
1D	1	8505-04-01	86485503	Plug,Casing Drain	Stl
1E	1	8505-04-01	646400507	Plug,flush line	Stl
2*	1	See below	See below	Impeller	Hard iron
2A	1	19110-72	64845082	Seal,impeller	Viton
2B	1		7300239	Washer,impeller	Stl
2C	1		7415648	Bolt,impeller lock	Stl
3*	1	22223-01-30	641116157	Stuffing box,mech.seal	Hard iron
3*	1	20614-01-30	643365042	Stuffing box,packed	Hard iron
3A	2	3861-117	648401016	Bolt,stuffing box	Stl
3B	1	19368-01	601499403	Grease fitting	Brass
4	1	20622A	641103338	Gland assy,packing	Stl 304
5A#	1	22451-1	648414308	Seal,mechanical	Tungsten
5A#	3	25014-04M-B	661007005	Packing, Shaft	Kevlar
6	2	B3701A	601102494	Bolt assy,gland	Stl 304
7	1	20612-02-33	646490557	Shaft	42CrMo
7A	1	20943-21	641102182	Sleeve,shaft,M.S.	38CrMoAl
7A	1	20613-21G-7A	641102181	Sleeve,shaft,Pack	Stl
7B	1	4372-5-21	601212392	Key,shaft	Stl
7C	1	23444-01-72	648415156	Seal,shaft sleeve	Viton
8	1	22210-1A	641116108	Deflector assembly	Composite
9	1	20618-12-1	644302499	Frame,grease lubricated	Cast iron
9A	1	8505-05	601474737	Plug,oil drain	Stl
9B	3	2538-1H	648403608	Plug,oil fil	stl
9C	1	8505-05	601474737	Plug, Frame Drain	Stl
10A	1	20626	644303109	Cover,inboard bearing	Iron
10B	1	20625	648408706	Gasket,I.B.Brg.Cover	Vegetable fiber
10C	1	20619-01	648408300	Oil seal, I.B.Brg.Cover	Buna-n
10D	2	3861-1	601407505	Bolt, I.B.Brg.Cover	Stl
10E	2	3932-2	601408560	Nut, I.B.Brg.Cover	Stl
10F	1	21641-01	661010033	Grease fitting	Brass
11	1	20615-1	–	Bearing,inboard	Vendor
12	1	20624-01-01	644308504	Housing,O.B.bearing	Iron
12A	1	7496-253	648402295	Seal, O.B.Brg.housing	Buna-n
12B	4	3861-138	648401057	Bolts, O.B.Brg.housing	Stl
12C	2	3932-62	658404702	Nut, O.B.Brg.housing jam	Stl
13	1	20617-01-01	641103296	Cover,O.B.Bearing	Iron
13A	1	19368-01	661010020	Grease zerk, O.B.Brg.Cover	Brass
13B	1	7496-26	72200017	O-ring, O.B.Brg.Cover	Buna-n
13C	1	20619-02	648408359	Oil seal, O.B.Brg.Cover	Buna-n
13D	2	3861-139	648401081	Bolt, O.B.Brg.Cover	Stl
14	2	20616-1	648408201s	Bearing, O.B.	Vendor
14A	1	6124-4	648402105	Lockwasher,O.B.Bearing	Stl
14B	1	6123-4	648402055	Locknut, O.B.Bearing	Stl
CASINGS ( including studs, nuts and gaskets)
Item	Qty	Part No.	Processing#	Description	Material
1*	1	19203-01-30A	641101753	Casing,3×2×13	Hard iron
1*	1	19205-01-30A	641101902	Casing,4×3×13	Hard iron
1*	1	19222-01-30A	641102058	Casing,5×4×14	Hard iron
1*	1	19122-01-30A	641101456	Casing,6×5×11	Hard iron
1*	1	19123-01-30A	641101605	Casing, 6×5×14	Hard iron
1*	1	19763-01-30A	641102157	Casing, 8×6×11	Hard iron
1*	1	19763-01-30A	641101308	Casing,8×6×14	Hard iron
1*	1	20937-01-30A	641102322	Casing,10×8×14	Hard iron
IMPELLERS
Item	Qty	Part No.	Processing#	Description	Material
2*	1	19204-XX-30	641215603	Impeller,3×2×13	Hard iron
2*	1	19206-XX-30	641217005	Impeller,4×3×13	Hard iron
2*	1	19224–XX-30	641217831	Impeller,5×4×14	Hard iron
2*	1	19121-XX-30	641211602	Impeller,6×5×11	Hard iron
2*	1	19121-XX-30	641212105	Impeller, 6×5×14	Hard iron
2*	1	19121-XX-30	641211602	Impeller, 8×6×11	Hard iron
2*	1	19116-XX-30	641209903	Impeller,8×6×14	Hard iron