PartsTable / O-RING / O-221
O-221
✓ 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 SYNTHETIC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-376-6820, 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
O-221
NSN: 5331-01-376-6820 FSC: 5331 — O-RINGCAGE: R0547 — ELLEHAMMERS LABORATORIUM A/S (DNK)
SPECIFICATIONS
material RUBBER SYNTHETIC NSN 5331-01-376-6820
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: O-221
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
• MATERIAL: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
10359788-5 Interchangeable interchangeable cross-reference
interchangeable
75-221 Interchangeable interchangeable cross-reference
interchangeable
5232 Interchangeable interchangeable cross-reference
interchangeable
TS240 Interchangeable interchangeable cross-reference
interchangeable
SM-D-180211 Interchangeable interchangeable cross-reference
interchangeable
0221 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is O-221?
O-221 is a O-RING.
What parts can replace O-221?
There are 13 known substitutes for O-221: 10359788-5, 75-221, 5232 and 10 more. Substitute compatibility should be verified for your specific system.
Is O-221 still available?
O-221 is currently cancelled.