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Technical Data Sheet
CR24951 ✓ 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 SPRING, case_style: SQUARE, seal_width: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, outside_diameter: 3.433 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 3.428 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-287-6638, 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
CR24951
NSN: 5330-01-287-6638
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SPRING
case_styleSQUARE
seal_width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
outside_diameter3.433 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter3.428 INCHES NOMINAL IN
sealing_element_styleVERTICAL
accommodated_shaft_diameter2.500 INCHES NOMINAL IN
NSN5330-01-287-6638
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CR24951 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
HOUSING BORE DIAMETER: 3.428 INCHES NOMINAL IN
OUTSIDE DIAMETER: 3.433 INCHES NOMINAL IN
SEALING ELEMENT STYLE: VERTICAL
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
CASE STYLE: SQUARE
SURFACE TREATMENT: PLASTIC CASE
TECHNICAL CHARACTERISTICS (FLIS)
HOUSING BORE DIAMETER3.428 INCHES NOMINAL IN
OUTSIDE DIAMETER3.433 INCHES NOMINAL IN
SEALING ELEMENT STYLEVERTICAL
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
MATERIALSTEEL CASE
MATERIALSTEEL CORROSION RESISTING SPRING
CASE STYLESQUARE
SURFACE TREATMENTPLASTIC CASE
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
SEAL WIDTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
24951Interchangeable
interchangeable cross-reference
interchangeable
639650Interchangeable
interchangeable cross-reference
interchangeable
1050020Interchangeable
interchangeable cross-reference
interchangeable
6510NCM116456Interchangeable
interchangeable cross-reference
interchangeable
157826-167Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CR24951?
CR24951 is a SEAL,PLAIN ENCASED.
What parts can replace CR24951?
There are 5 known substitutes for CR24951: 24951, 639650, 1050020 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CR24951?
CR24951 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-287-6638. This indicates validated use in U.S. government and defense supply chains.
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