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Technical Data Sheet
PartsTable / O-RING / 5427-19
5427-19 ✓ 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, outside_diameter: 1.262 INCHES NOMINAL IN, center_hole_diameter: 0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-482-4459, 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
5427-19
NSN: 5331-00-482-4459
FSC: 5331 — O-RING
CAGE: 00912 — AKRON BRASS COMPANY (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
outside_diameter1.262 INCHES NOMINAL IN
center_hole_diameter0.974 INCHES MINIMUM AND 0.994 INCHES MAXIMUM IN
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5331-00-482-4459
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5427-19 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 BUTADIENE NITRILE
•
CENTER HOLE DIAMETER: 0.984 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.139 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE NITRILE
CENTER HOLE DIAMETER0.984 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AV172-731 ITEM 3Interchangeable
interchangeable cross-reference
interchangeable
D95001-214Interchangeable
interchangeable cross-reference
interchangeable
1E2167BInterchangeable
interchangeable cross-reference
interchangeable
757010Interchangeable
interchangeable cross-reference
interchangeable
2AB5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5427-19?
5427-19 is a O-RING.
What parts can replace 5427-19?
There are 5 known substitutes for 5427-19: AV172-731 ITEM 3, D95001-214, 1E2167B and 2 more. Substitute compatibility should be verified for your specific system.
Is 5427-19 still available?
5427-19 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