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PartsTable / COMPONENT / 281481PC51
281481PC51 ✓ 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: STEEL CORROSION RESISTING CASE, case_style: SQUARE, seal_width: 0.375 INCHES NOMINAL IN, surface_treatment: PASSIVATE CASE, housing_bore_diameter: 1.500 INCHES NOMINAL IN, sealing_element_style: ANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-559-2683, 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
281481PC51
NSN: 5330-00-559-2683
FSC: 5330
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING CASE
case_styleSQUARE
seal_width0.375 INCHES NOMINAL IN
surface_treatmentPASSIVATE CASE
housing_bore_diameter1.500 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter0.750 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-559-2683
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 281481PC51 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: 0.750 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE CASE
•
SEALING ELEMENT STYLE: ANGULAR
•
SEAL WIDTH: 0.375 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING CASE
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
HOUSING BORE DIAMETER: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT DIAMETER0.750 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE CASE
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.375 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING CASE
CASE STYLESQUARE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
HOUSING BORE DIAMETER1.500 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
GGG-F-325 TY18CL4Interchangeable
interchangeable cross-reference
interchangeable
A-A-2321Interchangeable
interchangeable cross-reference
interchangeable
GGG-F-325Interchangeable
interchangeable cross-reference
interchangeable
208Interchangeable
interchangeable cross-reference
interchangeable
2012-T 24Interchangeable
interchangeable cross-reference
interchangeable
11416Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 281481PC51?
281481PC51 is a SEAL,PLAIN ENCASED.
What parts can replace 281481PC51?
There are 18 known substitutes for 281481PC51: GGG-F-325 TY18CL4, A-A-2321, GGG-F-325 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 281481PC51?
281481PC51 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-559-2683. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026