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Technical Data Sheet
B821737 ✓ 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: SQUARE, seal_width: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN, surface_treatment: CADMIUM CASE, housing_bore_diameter: 1.124 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN, sealing_element_style: ANGULAR-OPPOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-995-6230, 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
B821737
NSN: 5330-00-995-6230
FSC: 5330
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT A
case_styleSQUARE
seal_width0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
surface_treatmentCADMIUM CASE
housing_bore_diameter1.124 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter0.625 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1000 FEET PER MINUTE FT
NSN5330-00-995-6230
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B821737 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
SEAL WIDTH: 0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
SURFACE TREATMENT: CADMIUM CASE
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT A
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
ACCOMMODATED SHAFT DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAL WIDTH0.547 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR-OPPOSED
SURFACE TREATMENTCADMIUM CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALSTEEL CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
ACCOMMODATED SHAFT DIAMETER0.625 INCHES NOMINAL IN
CASE STYLESQUARE
HOUSING BORE DIAMETER1.124 INCHES MINIMUM AND 1.126 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
100658Interchangeable
interchangeable cross-reference
interchangeable
P2Interchangeable
interchangeable cross-reference
interchangeable
227XInterchangeable
interchangeable cross-reference
interchangeable
TT-2Interchangeable
interchangeable cross-reference
interchangeable
5S7219Interchangeable
interchangeable cross-reference
interchangeable
517Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B821737?
B821737 is a SEAL,PLAIN ENCASED.
What parts can replace B821737?
There are 11 known substitutes for B821737: 100658, P2, 227X and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B821737?
B821737 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-995-6230. This indicates validated use in U.S. government and defense supply chains.
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