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Technical Data Sheet
55400-5900-871186PC1421-8 ✓ 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 AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, outside_diameter: 3.000 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.688 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-266-4974, 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
55400-5900-871186PC1421-8
NSN: 5330-00-266-4974
FSC: 5330
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
outside_diameter3.000 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.688 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-266-4974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55400-5900-871186PC1421-8 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: 2.688 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
STYLE DESIGNATOR: CIRCULAR
MATERIAL: ASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER2.688 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
STYLE DESIGNATORCIRCULAR
MATERIALASBESTOS AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-A-17472 MIL SPEC ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
D28215Interchangeable
interchangeable cross-reference
interchangeable
28215Interchangeable
interchangeable cross-reference
interchangeable
SK5053NPC14D282-15Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55400-5900-871186PC1421-8?
55400-5900-871186PC1421-8 is a GASKET.
What parts can replace 55400-5900-871186PC1421-8?
There are 3 known substitutes for 55400-5900-871186PC1421-8: D28215, 28215, SK5053NPC14D282-15. Substitute compatibility should be verified for your specific system.
Is 55400-5900-871186PC1421-8 still available?
55400-5900-871186PC1421-8 is currently cancelled.
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