PartsTable
Technical Data Sheet
855557A ✓ 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 hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, special_features: FIBER MATERIAL, aperture_diameter: 3.188 INCHES NOMINAL IN, bolt_circle_diameter: 4.500 INCHES NOMINAL IN, outside_corner_radius: 0.375 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-298-9616, 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
855557A
NSN: 5330-00-298-9616
FSC: 5330
CAGE: 99539 — GENERAL FIRE EXTINGUISHER CORP (USA)
SPECIFICATIONS
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
special_featuresFIBER MATERIAL
aperture_diameter3.188 INCHES NOMINAL IN
bolt_circle_diameter4.500 INCHES NOMINAL IN
outside_corner_radius0.375 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-298-9616
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 855557A 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 THICKNESS: 0.062 INCHES NOMINAL IN
APERTURE DIAMETER: 3.188 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS: 0.375 INCHES NOMINAL IN
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT CIRCLE DIAMETER: 4.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
APERTURE DIAMETER3.188 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.375 INCHES NOMINAL IN
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT CIRCLE DIAMETER4.500 INCHES NOMINAL IN
SPECIAL FEATURESFIBER MATERIAL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
3974-1DInterchangeable
interchangeable cross-reference
interchangeable
85-557Interchangeable
interchangeable cross-reference
interchangeable
130067Interchangeable
interchangeable cross-reference
interchangeable
543-2159-002Interchangeable
interchangeable cross-reference
interchangeable
17367Interchangeable
interchangeable cross-reference
interchangeable
17367-160Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 855557A?
855557A is a GASKET.
What parts can replace 855557A?
There are 18 known substitutes for 855557A: 3974-1D, 85-557, 130067 and 15 more. Substitute compatibility should be verified for your specific system.
Is 855557A still available?
855557A is currently cancelled.
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