Mechanical Seal
National Oilwell Varco 648414308 / 22451-1 OR MCM 250 Mechanical Seal
Brand:- National Oilwell Varco / Mcm / OEM
MPN:- 648414308
Seal: 22451-1
This type Mechanical seal is suit for MISSION Magnum pumps and MCM 250 series pump.The material is high density tungsten carbide,Greatly extended friction life.
Download: Mission Pumps Catalog (pdf files)
We can supply NOV Mission Magnum centrifugal pumps model list
3x2x13 ,4x3x13 ,5x4x14 ,6x5x11 ,6x5x14 ,8x6x11 , 8x6x14 , 10x8x14.
Mission Magnum I Pump spare parts list :
| Item | QTY. | Part No. | Process No. | Description |
|---|---|---|---|---|
| 1* | 1 | See below | Casing | |
| 1A | 1 | 10399-46-1 | 648403012 | Gasket,casing |
| 1B | 12 | 3932-61 | 648402014 | Nut,casing |
| 1C | 12 | 3862-76 | 648401115 | Stud,casing |
| 1D | 1 | 8505-4-1 | 86485503 | Plug,Casing Drain |
| 1E | 1 | 8505-4-1 | 646400507 | Plug,flush line |
| 2* | 1 | See below | Impeller | |
| 2A | 1 | 19110-72 | 648405082 | Seal,impeller |
| 2B | 1 | 7300239 | Washer,impeller | |
| 2C | 1 | 7415648 | Bolt,impeler lock | |
| 3*# | 1 | 22223-01-30 | 641116157 | Stuffing box,mech.seal |
| 3*& | 1 | 20614-01-30 | 643365042 | Stuffing box,packed |
| 3A | 2 | 3861-117 | 648401016 | Bolt,stuffing box |
| 3B& | 1 | 19368-01 | 601499403 | Grease fitting |
| 4 | 1 | 20622A | 641103338 | Gland assy,packing |
| 5A# | 1 | 22451-1 | 648414308 | Mechanical Seal |
| 5A~ | 3 | 25014-04M-B | 661007005 | Packing, Shaft - M.S. Backup |
| 6 | 2 | B3701A | 601102494 | Bolt assy,gland |
| 7 | 1 | 20612-02-33 | 646490557 | Shaft |
| 7A | 1 | 20943-04A | 641103437 | Sleeve,shaft |
| 7B | 1 | 4371-5-21 | 601212392 | Key,shaft |
| 7C | 1 | 23444-01-72 | 648415156 | Seal,shaft sleeve |
| 8 | 1 | 22210-1A | 641116108 | Deflector assembly |
| 9 | 1 | 20618-12-1 | 644302499 | Frame,grease lubricated |
| 9C | 1 | 8505-05 | 601474737 | Plug, Frame Drain |
| 9D | 1 | 8267-01 | 601473689 | Breather |
| 9G | 3 | 2538-1H | Bolt,casing jack | |
| 10A | 1 | 20626 | 641103361 | Cover,inboard bearing |
| 10B | 1 | 20625 | 648408706 | Gasket,I.B.Brg.Cover |
| 10C | 1 | 20619-01 | 648408300 | Oil seal, I.B.Brg.Cover |
| 10D | 2 | 3861-1 | 601407505 | Bolt, I.B.Brg.Cover |
| 10E | 2 | 3932-2 | 601408560 | Nut, I.B.Brg.Cover |
| 10F | 1 | 20620-01 | 648408409 | Exclusion Seal,I.B. Brg.Cvr. |
| 10H | 1 | 19368-01 | 648411908 | Grease fitting |
| 11 | 1 | 20615-1 | 648408102 | Bearing,inboard |
| 12 | 1 | 20624-01-01 | 644308504 | Housing,O.B.bearing |
| 12A | 1 | 7496-253 | 648402295 | Seal, O.B.Brg.housing |
| 12B | 4 | 3861-138 | 648401057 | Bolts, O.B.Brg.housing |
| 12C | 2 | 3932-62 | 658404702 | Nut, O.B.Brg.housing jam |
| 13 | 1 | 20617A | 641103296 | Cover,O.B.Bearing |
| 13A | 1 | 19368-01 | 661010020 | Grease zerk, O.B.Brg.Cover |
| 13B | 1 | 7496-26 | 72200017 | O-ring, O.B.Brg.Cover |
| 13C | 1 | 20619-02 | 648408359 | Oil seal, O.B.Brg.Cover |
| 13D | 2 | 3861-139 | 648401081 | Bolt, O.B.Brg.Cover |
| 14 | 2 | 20616-1 | 648408201 S | Bearing, O.B. |
| 14A | 1 | 6124-4 | 648402105 | Lockwasher,O.B.Bearing |
| 14B | 1 | 6123-4 | 648402055 | Locknut, O.B.Bearing |
Casing |
||||
| 1* | 1 | 19203-01-30A | 641101753 | Casing,3x2x13 |
| 1* | 1 | 19205-01-30A | 641101902 | Casing,4x3x13 |
| 1* | 1 | 19222-01-30A | 641102058 | Casing,5x4x14 |
| 1* | 1 | 19122-01-30A | 641101456 | Casing,6x5x11 |
| 1* | 1 | 19123-01-30A | 641101605 | Casing, 6x5x14 |
| 1* | 1 | 19763-01-30A | 641102157 | Casing, 8x6x11 |
| 1* | 1 | 19117-01-30A | 641101308 | Casing,8x6x14 |
| 1* | 1 | 20937-01-30A | 641102322 | Casing,10x8x14 |
Impellers |
||||
| 2* | 1 | 19204-XX-30 | 641215603 | Impeller,3x2x13 |
| 2* | 1 | 19206-XX-30 | 641217005 | Impeller,4x3x13 |
| 2* | 1 | 19224-XX-30 | 641217831 | Impeller,5x4x14 |
| 2* | 1 | 19121-XX-30 | 641211602 | Impeller,6x5x11 |
| 2* | 1 | 19121-XX-30 | 641212105 | Impeller, 6x5x14 |
| 2* | 1 | 19121-XX-30 | 641211602 | Impeller, 8x6x11 |
| 2* | 1 | 19116-XX-30 | 641209903 | Impeller,8x6x14 |
| 2* | 1 | 21867-XX-30 | 641221007 | Impeller,10x8x14 |
