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640559 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

640559: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER, center_hole_diameter: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-933-2089, 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
640559
NSN: 5331-00-933-2089
NIINs: 009332089, 012772370
FSC: 5331 — O-ring
CAGE: 11449 — TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP (USA)
SPECIFICATIONS
materialRUBBER
center_hole_diameter0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-00-933-2089
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 640559 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
•
MATERIAL: RUBBER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.734 INCHES MINIMUM AND 0.744 INCHES MAXIMUM IN
MATERIALRUBBER
SUBSTITUTES & CROSS-REFERENCES 3
571005Reference document
Same NSN cross-reference
Reference document — Secondary reference
571007Reference document
Same NSN cross-reference
Reference document — Secondary reference
571004Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 640559?
640559 is a O-RING.
What parts can replace 640559?
There are 3 known substitutes for 640559: 571005, 571007, 571004. Substitute compatibility should be verified for your specific system.
What is the NSN for 640559?
640559 is cataloged in the U.S. Government catalog under NSN 5331-00-933-2089. This indicates validated use in U.S. government and defense supply chains.
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