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Technical Data Sheet

N3557 — Technical Data Sheet

✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: ASBESTOS CORE, outside_diameter: 3.250 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.375 INCHES NOMINAL IN, cross-sectional_shape_style: METAL WITH SOFT FILLER. This part is cataloged in the Federal Logistics Information System under NSN 5330-00-363-7730, 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
N3557
NSN: 5330-00-363-7730
FSC: 5330
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialASBESTOS CORE
outside_diameter3.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.500 INCHES NOMINAL IN
cross-sectional_thickness0.375 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL WITH SOFT FILLER
NSN5330-00-363-7730
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: N3557 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
•
APERTURE DIAMETER: 2.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL WITH SOFT FILLER
•
MATERIAL: ASBESTOS CORE
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL THICKNESS: 0.375 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
APERTURE DIAMETER2.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL WITH SOFT FILLER
MATERIALASBESTOS CORE
STYLE DESIGNATORCIRCULAR
MATERIALCOPPER CASE
CROSS-SECTIONAL THICKNESS0.375 INCHES NOMINAL IN
OUTSIDE DIAMETER3.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
6-054InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
EHH0061InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
204178InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6560588InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2234-000-A000-9InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1363InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N3557?
N3557 is a GASKET.
What parts can replace N3557?
There are 23 known substitutes for N3557: 6-054, EHH0061, 204178 and 20 more. Substitute compatibility should be verified for your specific system.
Is N3557 still available?
N3557 is currently cancelled.
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