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Technical Data Sheet
3-4E540-80 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include color: BLACK, material: RUBBER SYNTHETIC OVERALL, temp_rating: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 80.0 SHORE DUROMETER A MAXIMUM OVERALL, center_hole_diameter: 0.351 INCHES NOMINAL IN, cross-sectional_height: 0.072 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 5330-01-037-7739, 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
3-4E540-80
NSN: 5330-01-037-7739
FSC: 5330
CAGE: 02697 — PARKER-HANNIFIN CORP DIV O-RING DIVISION (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER SYNTHETIC OVERALL
temp_rating-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating80.0 SHORE DUROMETER A MAXIMUM OVERALL
center_hole_diameter0.351 INCHES NOMINAL IN
cross-sectional_height0.072 INCHES NOMINAL IN
cross-sectional_shape_styleO-RING
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-01-037-7739
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3-4E540-80 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
HARDNESS RATING: 80.0 SHORE DUROMETER A MAXIMUM OVERALL
CRITICALITY CODE JUSTIFICATION: ZZZY
MATERIAL: RUBBER SYNTHETIC OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CROSS-SECTIONAL HEIGHT: 0.072 INCHES NOMINAL IN
TEMP RATING: -70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL SHAPE STYLE: O-RING
COLOR: BLACK
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING80.0 SHORE DUROMETER A MAXIMUM OVERALL
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIALRUBBER SYNTHETIC OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
CROSS-SECTIONAL HEIGHT0.072 INCHES NOMINAL IN
TEMP RATING-70.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
CROSS-SECTIONAL SHAPE STYLEO-RING
COLORBLACK
CENTER HOLE DIAMETER0.351 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
990404-904ESInterchangeable
interchangeable cross-reference
interchangeable
170100-904Interchangeable
interchangeable cross-reference
interchangeable
3-904E540-80Interchangeable
interchangeable cross-reference
interchangeable
E0540 3-904Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-4E540-80?
3-4E540-80 is a PACKING,PREFORMED.
What parts can replace 3-4E540-80?
There are 4 known substitutes for 3-4E540-80: 990404-904ES, 170100-904, 3-904E540-80 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3-4E540-80?
3-4E540-80 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-037-7739. This indicates validated use in U.S. government and defense supply chains.
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