PartsTable
Technical Data Sheet
PartsTable / O-RING / T102120
T102120 ✓ 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 color: BLACK, material: RUBBER, center_hole_diameter: 0.625 INCHES NOMINAL IN, cross-sectional_height: 0.070 INCHES NOMINAL IN, end_item_identification: SNIPER SCOPE, MODEL C3. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-459-6763, 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
T102120
NSN: 5331-01-459-6763
FSC: 5331 — O-RING
CAGE: 78908 — UNERTL JOHN OPTICAL CO INC (USA)
SPECIFICATIONS
colorBLACK
materialRUBBER
center_hole_diameter0.625 INCHES NOMINAL IN
cross-sectional_height0.070 INCHES NOMINAL IN
end_item_identificationSNIPER SCOPE, MODEL C3
NSN5331-01-459-6763
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: T102120 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: 0.070 INCHES NOMINAL IN
•
MATERIAL: RUBBER
•
COLOR: BLACK
•
CENTER HOLE DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
MATERIALRUBBER
COLORBLACK
END ITEM IDENTIFICATIONSNIPER SCOPE, MODEL C3
CENTER HOLE DIAMETER0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
T120Interchangeable
interchangeable cross-reference
interchangeable
03Interchangeable
interchangeable cross-reference
interchangeable
19-12-1565-1212Interchangeable
interchangeable cross-reference
interchangeable
1130941-1Interchangeable
interchangeable cross-reference
interchangeable
S5949Interchangeable
interchangeable cross-reference
interchangeable
673-0264-00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy T102120?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is T102120?
T102120 is a O-RING.
What parts can replace T102120?
There are 13 known substitutes for T102120: T120, 03, 19-12-1565-1212 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T102120?
T102120 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-459-6763. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — T102120

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026