PartsTable / O-RING / 5X521
5X521
✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, center_hole_diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-640-9613, 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
5X521
NSN: 5331-00-640-9613 FSC: 5331 — O-RINGCAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
material RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR center_hole_diameter 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN cross-sectional_height 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN NSN 5331-00-640-9613
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: 5X521
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
• CENTER HOLE DIAMETER: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN
• CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
• MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN CROSS-SECTIONAL HEIGHT 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
100-152 Interchangeable interchangeable cross-reference
interchangeable
347360R1 Interchangeable interchangeable cross-reference
interchangeable
1820-7 Interchangeable interchangeable cross-reference
interchangeable
AN6227B7 Interchangeable interchangeable cross-reference
interchangeable
13856PC7 Interchangeable interchangeable cross-reference
interchangeable
MV-3264-28-MC Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5X521?
5X521 is a O-RING.
What parts can replace 5X521?
There are 30 known substitutes for 5X521: 100-152, 347360R1, 1820-7 and 27 more. Substitute compatibility should be verified for your specific system.
Is 5X521 still available?
5X521 is currently cancelled.