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PartsTable / COMPONENT / CRSA509407
CRSA509407 ✓ 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 B, case_style: SQUARE, seal_width: 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, outside_diameter: 2.441 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 2.437 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-251-4132, 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
CRSA509407
NSN: 5330-00-251-4132
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
case_styleSQUARE
seal_width0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
outside_diameter2.441 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.437 INCHES NOMINAL IN
sealing_element_styleVERTICAL-ANGULAR
accommodated_shaft_diameter1.625 INCHES NOMINAL IN
NSN5330-00-251-4132
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CRSA509407 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: VERTICAL-ANGULAR
•
OUTSIDE DIAMETER: 2.441 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT B
•
HOUSING BORE DIAMETER: 2.437 INCHES NOMINAL IN
•
SURFACE TREATMENT: PLASTIC CASE
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEVERTICAL-ANGULAR
OUTSIDE DIAMETER2.441 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
HOUSING BORE DIAMETER2.437 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.625 INCHES NOMINAL IN
SEAL WIDTH0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
161-18Interchangeable
interchangeable cross-reference
interchangeable
ML355-2-5ITEM8Interchangeable
interchangeable cross-reference
interchangeable
B1498BInterchangeable
interchangeable cross-reference
interchangeable
112-1Interchangeable
interchangeable cross-reference
interchangeable
430PInterchangeable
interchangeable cross-reference
interchangeable
184P471060Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CRSA509407?
CRSA509407 is a SEAL,PLAIN ENCASED.
What parts can replace CRSA509407?
There are 13 known substitutes for CRSA509407: 161-18, ML355-2-5ITEM8, B1498B and 10 more. Substitute compatibility should be verified for your specific system.
Is CRSA509407 still available?
CRSA509407 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