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510381 ✓ 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 SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, outside_diameter: 2.378 INCHES NOMINAL IN, surface_treatment: CADMIUM CASE, housing_bore_diameter: 2.376 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-766-5054, 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
510381
NSN: 5330-00-766-5054
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
outside_diameter2.378 INCHES NOMINAL IN
surface_treatmentCADMIUM CASE
housing_bore_diameter2.376 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.625 INCHES NOMINAL IN
NSN5330-00-766-5054
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 510381 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
•
SEALING ELEMENT STYLE: ANGULAR
•
CASE STYLE: SQUARE
•
OUTSIDE DIAMETER: 2.378 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM CASE
•
MATERIAL: STEEL CASE
•
ACCOMMODATED SHAFT DIAMETER: 1.625 INCHES NOMINAL IN
•
SEAL WIDTH: 0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEANGULAR
CASE STYLESQUARE
OUTSIDE DIAMETER2.378 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
ACCOMMODATED SHAFT DIAMETER1.625 INCHES NOMINAL IN
SEAL WIDTH0.485 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
HOUSING BORE DIAMETER2.376 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SCB69326-15Interchangeable
interchangeable cross-reference
interchangeable
50941Interchangeable
interchangeable cross-reference
interchangeable
5099-13Interchangeable
interchangeable cross-reference
interchangeable
1K4683Interchangeable
interchangeable cross-reference
interchangeable
16091Interchangeable
interchangeable cross-reference
interchangeable
994134C1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 510381?
510381 is a SEAL,PLAIN ENCASED.
What parts can replace 510381?
There are 17 known substitutes for 510381: SCB69326-15, 50941, 5099-13 and 14 more. Substitute compatibility should be verified for your specific system.
Is 510381 still available?
510381 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