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Technical Data Sheet
540556 ✓ 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: SQUARE, seal_width: 0.240 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN, temp_rating: -67.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF, housing_bore_diameter: 1.560 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-808-5248, 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
540556
NSN: 5330-00-808-5248
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.240 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN
temp_rating-67.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
housing_bore_diameter1.560 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.125 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed8000 FEET PER MINUTE FT
NSN5330-00-808-5248
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 540556 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
TEMP RATING: -67.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 8000 FEET PER MINUTE FT
HOUSING BORE DIAMETER: 1.560 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
CASE STYLE: SQUARE
SEALING ELEMENT STYLE: ANGULAR
SEAL WIDTH: 0.240 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RATING-67.0 FAHRENHEIT AND 300.0 FAHRENHEIT DEGF
ACCOMMODATED SHAFT MAXIMUM RATED SPEED8000 FEET PER MINUTE FT
HOUSING BORE DIAMETER1.560 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
CASE STYLESQUARE
SEALING ELEMENT STYLEANGULAR
SEAL WIDTH0.240 INCHES MINIMUM AND 0.272 INCHES MAXIMUM IN
MATERIALSTEEL CASE
ACCOMMODATED SHAFT DIAMETER1.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
203701Interchangeable
interchangeable cross-reference
interchangeable
206-076-036-1Interchangeable
interchangeable cross-reference
interchangeable
11067Interchangeable
interchangeable cross-reference
interchangeable
206-076-036-001Interchangeable
interchangeable cross-reference
interchangeable
SC-092Interchangeable
interchangeable cross-reference
interchangeable
SC-092-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 540556?
540556 is a SEAL,PLAIN ENCASED.
What parts can replace 540556?
There are 21 known substitutes for 540556: 203701, 206-076-036-1, 11067 and 18 more. Substitute compatibility should be verified for your specific system.
Is 540556 still available?
540556 is currently cancelled.
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