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Technical Data Sheet
PartsTable / COMPONENT / 663520M1
663520M1 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, case_style: SQUARE, seal_width: 0.625 INCHES NOMINAL IN, outside_diameter: 6.631 INCHES NOMINAL IN, special_features: WITH INTEGRAL COVER PLATE, surface_treatment: PLASTIC CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-017-6102, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
663520M1
NSN: 5330-00-017-6102
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
case_styleSQUARE
seal_width0.625 INCHES NOMINAL IN
outside_diameter6.631 INCHES NOMINAL IN
special_featuresWITH INTEGRAL COVER PLATE
surface_treatmentPLASTIC CASE
housing_bore_diameter6.625 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter5.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE FT
NSN5330-00-017-6102
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 663520M1 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SEAL WIDTH: 0.625 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 6.625 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
SEALING ELEMENT STYLE: ANGULAR
•
SURFACE TREATMENT: PLASTIC CASE
•
CASE STYLE: SQUARE
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.625 INCHES NOMINAL IN
SPECIAL FEATURESWITH INTEGRAL COVER PLATE
HOUSING BORE DIAMETER6.625 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
SURFACE TREATMENTPLASTIC CASE
CASE STYLESQUARE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
OUTSIDE DIAMETER6.631 INCHES NOMINAL IN
ACCOMMODATED SHAFT DIAMETER5.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1050AND5610-1Interchangeable
interchangeable cross-reference
interchangeable
5610-1Interchangeable
interchangeable cross-reference
interchangeable
5610Interchangeable
interchangeable cross-reference
interchangeable
AN515-416-8Interchangeable
interchangeable cross-reference
interchangeable
6109Interchangeable
interchangeable cross-reference
interchangeable
71136-279Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 663520M1?
663520M1 is a SEAL,PLAIN ENCASED.
What parts can replace 663520M1?
There are 8 known substitutes for 663520M1: 1050AND5610-1, 5610-1, 5610 and 5 more. Substitute compatibility should be verified for your specific system.
Is 663520M1 still available?
663520M1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026