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Technical Data Sheet
PartsTable / O-RING / 1557052-27
1557052-27 ✓ 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, center_hole_diameter: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN, cross-sectional_height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-531-2068, 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
1557052-27
NSN: 5331-00-531-2068
FSC: 5331 — O-RING
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
center_hole_diameter0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
cross-sectional_height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
NSN5331-00-531-2068
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1557052-27 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-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 250 MAXIMUM
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
ELONGATION PERCENTAGE250 MAXIMUM
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
101151Interchangeable
interchangeable cross-reference
interchangeable
FFS92TYPE1STYLE1SInterchangeable
interchangeable cross-reference
interchangeable
19293P11Interchangeable
interchangeable cross-reference
interchangeable
2706Interchangeable
interchangeable cross-reference
interchangeable
6290-8Interchangeable
interchangeable cross-reference
interchangeable
3059Y5KInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1557052-27?
1557052-27 is a O-RING.
What parts can replace 1557052-27?
There are 27 known substitutes for 1557052-27: 101151, FFS92TYPE1STYLE1S, 19293P11 and 24 more. Substitute compatibility should be verified for your specific system.
Is 1557052-27 still available?
1557052-27 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