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Technical Data Sheet
PartsTable / O-RING / NS3969PIECE13 1
NS3969PIECE13 1 ✓ 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, outside_diameter: 1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN, center_hole_diameter: 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-641-3763, 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
NS3969PIECE13 1
NSN: 5331-00-641-3763
FSC: 5331 — O-RING
CAGE: 11836 — NATIONAL OILWELL (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN
center_hole_diameter1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5331-00-641-3763
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NS3969PIECE13 1 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
•
OUTSIDE DIAMETER: 1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER1.679 INCHES MINIMUM AND 1.719 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.415 INCHES MINIMUM AND 1.427 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
10105907Interchangeable
interchangeable cross-reference
interchangeable
90226Interchangeable
interchangeable cross-reference
interchangeable
7039751Interchangeable
interchangeable cross-reference
interchangeable
MS28775-222Interchangeable
interchangeable cross-reference
interchangeable
N304-75-222Interchangeable
interchangeable cross-reference
interchangeable
0619799Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NS3969PIECE13 1?
NS3969PIECE13 1 is a O-RING.
What parts can replace NS3969PIECE13 1?
There are 24 known substitutes for NS3969PIECE13 1: 10105907, 90226, 7039751 and 21 more. Substitute compatibility should be verified for your specific system.
Is NS3969PIECE13 1 still available?
NS3969PIECE13 1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026