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Technical Data Sheet
551029-56 ✓ 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 is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT, seal_width: 7.7 MILLIMETERS MINIMUM AND 8.3 MILLIMETERS MAXIMUM MM, construction: SOLID, outside_diameter: 62.2 MILLIMETERS NOMINAL MM, surface_treatment: PLASTIC CASE, housing_bore_diameter: 61.8 MILLIMETERS MINIMUM AND 62.1 MILLIMETERS MAXIMUM MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-525-3562, 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
551029-56
NSN: 5330-01-525-3562
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
seal_width7.7 MILLIMETERS MINIMUM AND 8.3 MILLIMETERS MAXIMUM MM
constructionSOLID
outside_diameter62.2 MILLIMETERS NOMINAL MM
surface_treatmentPLASTIC CASE
housing_bore_diameter61.8 MILLIMETERS MINIMUM AND 62.1 MILLIMETERS MAXIMUM MM
end_item_identificationTGRM GATE BEARING CARTRIDGE ASSEMBLY
accommodated_shaft_diameter45.0 MILLIMETERS NOMINAL MM
cross-sectional_shape_styleSINGLE LIP
NSN5330-01-525-3562
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 551029-56 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
ACCOMMODATED SHAFT DIAMETER: 45.0 MILLIMETERS NOMINAL MM
SEAL WIDTH: 7.7 MILLIMETERS MINIMUM AND 8.3 MILLIMETERS MAXIMUM MM
OUTSIDE DIAMETER: 62.2 MILLIMETERS NOMINAL MM
CONSTRUCTION: SOLID
HOUSING BORE DIAMETER: 61.8 MILLIMETERS MINIMUM AND 62.1 MILLIMETERS MAXIMUM MM
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER45.0 MILLIMETERS NOMINAL MM
SEAL WIDTH7.7 MILLIMETERS MINIMUM AND 8.3 MILLIMETERS MAXIMUM MM
OUTSIDE DIAMETER62.2 MILLIMETERS NOMINAL MM
CONSTRUCTIONSOLID
END ITEM IDENTIFICATIONTGRM GATE BEARING CARTRIDGE ASSEMBLY
HOUSING BORE DIAMETER61.8 MILLIMETERS MINIMUM AND 62.1 MILLIMETERS MAXIMUM MM
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
SURFACE TREATMENTPLASTIC CASE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
17754Interchangeable
interchangeable cross-reference
interchangeable
T17754Interchangeable
interchangeable cross-reference
interchangeable
157D1-0889Interchangeable
interchangeable cross-reference
interchangeable
40821Interchangeable
interchangeable cross-reference
interchangeable
WE2415Interchangeable
interchangeable cross-reference
interchangeable
1-00823Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 551029-56?
551029-56 is a SEAL,PLAIN.
What parts can replace 551029-56?
There are 16 known substitutes for 551029-56: 17754, T17754, 157D1-0889 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 551029-56?
551029-56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-525-3562. This indicates validated use in U.S. government and defense supply chains.
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