PartsTable
Technical Data Sheet
NAS 1611-208 ✓ 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. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-231-7479, 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
NAS 1611-208
NSN: 5331-01-231-7479
FSC: 5331 — O-RING
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
Part NumberNAS 1611-208
NSN5331-01-231-7479
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NAS 1611-208 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
1298023-16Interchangeable
interchangeable cross-reference
interchangeable
1298023Interchangeable
interchangeable cross-reference
interchangeable
1298023-10Interchangeable
interchangeable cross-reference
interchangeable
1298023-4Interchangeable
interchangeable cross-reference
interchangeable
2-016 E0540-80 1W2BInterchangeable
interchangeable cross-reference
interchangeable
1298023-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS 1611-208?
NAS 1611-208 is a O-RING.
What parts can replace NAS 1611-208?
There are 14 known substitutes for NAS 1611-208: 1298023-16, 1298023, 1298023-10 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS 1611-208?
NAS 1611-208 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-231-7479. This indicates validated use in U.S. government and defense supply chains.
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