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4987590-9 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4987590-9: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: CELLULOSE AND RUBBER SYNTHETIC OVERALL, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.000 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 2.781 INCHES NOMINAL IN, bolt_circle_diameter: 3.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-919-9753, 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
4987590-9
NSN: 5330-00-919-9753
FSC: 5330 — Packing and Gasket Materials
CAGE: 0AHU0 — KALMAR AC INC (USA)
SPECIFICATIONS
materialCELLULOSE AND RUBBER SYNTHETIC OVERALL
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.000 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter2.781 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter3.375 INCHES NOMINAL IN
outside_corner_radius0.312 INCHES NOMINAL IN
cross-sectional_thickness0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
side_radius_from_gasket_center1.688 INCHES NOMINAL IN
NSN5330-00-919-9753
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4987590-9 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: 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
•
SIDE RADIUS FROM GASKET CENTER: 1.688 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 2.781 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
BOLT CIRCLE DIAMETER: 3.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
SIDE RADIUS FROM GASKET CENTER1.688 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH4.000 INCHES NOMINAL IN
APERTURE DIAMETER2.781 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER3.375 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.312 INCHES NOMINAL IN
MATERIALCELLULOSE AND RUBBER SYNTHETIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
T11-147Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
376MPP1Reference document
Same NSN cross-reference
Reference document — Secondary reference
498759Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4987590-9?
4987590-9 is a GASKET.
What parts can replace 4987590-9?
There are 3 known substitutes for 4987590-9: T11-147, 376MPP1, 498759. Substitute compatibility should be verified for your specific system.
What is the NSN for 4987590-9?
4987590-9 is cataloged in the U.S. Government catalog under NSN 5330-00-919-9753. This indicates validated use in U.S. government and defense supply chains.
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