MAIN FILTER INC. MF0308428 HF6521 Interchange Spin-On Filter, Cellulose, 20 Micron, Buna Seal, 8.75 Inch Height
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Product Specifications:
| Item | Spin-On Hydraulic Filter |
| Bottom Outside Dia. | 3 3/4" |
| Burst Pressure | 304 psi |
| Capacity | 24.03g |
| Cracking Pressure | 72 psi |
| Filter Media | Cellulose |
| Filter Rating | 20 µm |
| Filter Size | 601 sq. in. |
| Flow Direction | Outside In |
| Flow Type | Outside In |
| Fluid Type | HL, HM, HV, HH |
| Gasket Material | Buna N |
| Height | 8 3/4" |
| Max. Operating Temp. | 248 Deg. F |
| Max. Operating Temp. | 248°F |
| Min. Operating Temp. | -13°F |
| Seal Type | Buna N |
| Thread | 12 UNF |
| Thread Size | 1 mm |
| Top Outside Dia. | 3 3/4" |
Product Details:
- Repalcement FLEETGUARD HF6521
Product Variants
| Product | Model | Bottom Outside Dia. | Top Outside Dia. | Cracking Pressure | Height | Burst Pressure | Thread | Filter Size | Capacity | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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MF0095167 | 3 3/4" | 3 3/4" | 72 psi | 5.38" | - | 12 UNF | - | - | - | RFQ
|
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MF0301815 | 3.78" | 3.78" | 72.5 psi | 8.307" | 304.6 psi | 14 BSP | 601 sq. in. | 24.03g | - | RFQ
|
![]() |
MF0301817 | 3.78" | 3.78" | 72.5 psi | 5.748" | 304.6 psi | 14 BSP | - | - | - | RFQ
|
![]() |
MF0301819 | 5.079" | 5.079" | - | 7.02" | - | - | - | - | - | RFQ
|
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MF0301824 | 5.079" | 5.079" | 72.5 psi | 8.949" | 246.6 psi | 11 BSP | 1044 sq. in. | 41.74g | - | RFQ
|
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MF0304221 | 5.079" | 5.079" | - | 7.02" | - | - | - | - | - | RFQ
|
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MF0304226 | 3.78" | 3.78" | 72.5 psi | 5.748" | - | 14 BSP | - | - | - | RFQ
|
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
MAIN FILTER INC. MF0308428 HF6521 Interchange Spin-On Filter, Cellulose, 20 Micron, Buna Seal, 8.75 Inch Height





