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Technical Data Sheet
D56243 ✓ 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 CASE, case_style: RECESSEDRECESSED, seal_width: 0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN, housing_bore_diameter: 1.249 INCHES MINIMUM AND 1.249 INCHES MINIMUM AND 1.251 INCHES MAXIMUM1.251 INCHES MAXIMUM IN, sealing_element_style: ANGULARANGULAR, accommodated_shaft_diameter: 0.748 INCHES MINIMUM AND 0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM0.752 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-505-5146, 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
D56243
NSN: 5330-00-505-5146
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleRECESSEDRECESSED
seal_width0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
housing_bore_diameter1.249 INCHES MINIMUM AND 1.249 INCHES MINIMUM AND 1.251 INCHES MAXIMUM1.251 INCHES MAXIMUM IN
sealing_element_styleANGULARANGULAR
accommodated_shaft_diameter0.748 INCHES MINIMUM AND 0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM0.752 INCHES MAXIMUM IN
accommodated_shaft_maximum_rated_speed2000 FEET PER MINUTE2000 FEET PER MINUTE FT
NSN5330-00-505-5146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D56243 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
CASE STYLE: RECESSEDRECESSED
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLE: ANGULARANGULAR
ACCOMMODATED SHAFT DIAMETER: 0.748 INCHES MINIMUM AND 0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM0.752 INCHES MAXIMUM IN
HOUSING BORE DIAMETER: 1.249 INCHES MINIMUM AND 1.249 INCHES MINIMUM AND 1.251 INCHES MAXIMUM1.251 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE2000 FEET PER MINUTE FT
SEAL WIDTH: 0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLERECESSEDRECESSED
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SEALING ELEMENT STYLEANGULARANGULAR
ACCOMMODATED SHAFT DIAMETER0.748 INCHES MINIMUM AND 0.748 INCHES MINIMUM AND 0.752 INCHES MAXIMUM0.752 INCHES MAXIMUM IN
HOUSING BORE DIAMETER1.249 INCHES MINIMUM AND 1.249 INCHES MINIMUM AND 1.251 INCHES MAXIMUM1.251 INCHES MAXIMUM IN
MATERIALSTEEL CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE2000 FEET PER MINUTE FT
SEAL WIDTH0.296 INCHES MINIMUM AND 0.296 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
2781-4Interchangeable
interchangeable cross-reference
interchangeable
RH19B25Interchangeable
interchangeable cross-reference
interchangeable
32530Interchangeable
interchangeable cross-reference
interchangeable
11M600Interchangeable
interchangeable cross-reference
interchangeable
AWO-227-1Interchangeable
interchangeable cross-reference
interchangeable
32124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D56243?
D56243 is a SEAL,PLAIN ENCASED.
What parts can replace D56243?
There are 22 known substitutes for D56243: 2781-4, RH19B25, 32530 and 19 more. Substitute compatibility should be verified for your specific system.
Is D56243 still available?
D56243 is currently cancelled.
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