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PartsTable / COMPONENT / 18658CRSA1
18658CRSA1 ✓ 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 A, case_style: RECESSED, seal_width: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, outside_diameter: 2.754 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-046-3291, 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
18658CRSA1
NSN: 5330-01-046-3291
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT A
case_styleRECESSED
seal_width0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
outside_diameter2.754 INCHES NOMINAL IN
surface_treatmentPLASTIC CASE
housing_bore_diameter2.750 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter1.875 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed2500 FEET PER MINUTE FT
NSN5330-01-046-3291
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18658CRSA1 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 MAXIMUM RATED SPEED: 2500 FEET PER MINUTE FT
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
SEAL WIDTH: 0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PLASTIC CASE
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT B
•
CASE STYLE: RECESSED
•
ACCOMMODATED SHAFT DIAMETER: 1.875 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2500 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR-OPPOSED
SEAL WIDTH0.298 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
SURFACE TREATMENTPLASTIC CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
CASE STYLERECESSED
ACCOMMODATED SHAFT DIAMETER1.875 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.750 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
18658Interchangeable
interchangeable cross-reference
interchangeable
18660 PIECE 9Interchangeable
interchangeable cross-reference
interchangeable
CB90-43107-144Interchangeable
interchangeable cross-reference
interchangeable
MIL-R-15624 CL 3Interchangeable
interchangeable cross-reference
interchangeable
6515NCM104930Interchangeable
interchangeable cross-reference
interchangeable
ATS45Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 18658CRSA1?
18658CRSA1 is a SEAL,PLAIN ENCASED.
What parts can replace 18658CRSA1?
There are 7 known substitutes for 18658CRSA1: 18658, 18660 PIECE 9, CB90-43107-144 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 18658CRSA1?
18658CRSA1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-046-3291. 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