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PartsTable / COMPONENT / MS27030-9
MS27030-9 ✓ 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 hardness_rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 4.859 INCHES MINIMUM AND 4.891 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 3.984 INCHES MINIMUM AND 4.016 INCHES MAXIMUM IN, cross-sectional_thickness: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-899-4509, 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
MS27030-9
NSN: 5330-00-899-4509
FSC: 5330
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter4.859 INCHES MINIMUM AND 4.891 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter3.984 INCHES MINIMUM AND 4.016 INCHES MAXIMUM IN
cross-sectional_thickness0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM D2000 2BG615E5 ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN5330-00-899-4509
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MS27030-9 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BG615E5 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
•
APERTURE DIAMETER: 3.984 INCHES MINIMUM AND 4.016 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 4.859 INCHES MINIMUM AND 4.891 INCHES MAXIMUM IN
•
CROSS-SECTIONAL THICKNESS: 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BG615E5 ASSN STD ALL MATERIAL RESPONSES OVERALL
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
APERTURE DIAMETER3.984 INCHES MINIMUM AND 4.016 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER4.859 INCHES MINIMUM AND 4.891 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
K60-198Interchangeable
interchangeable cross-reference
interchangeable
5-5906Interchangeable
interchangeable cross-reference
interchangeable
16960Interchangeable
interchangeable cross-reference
interchangeable
470596Interchangeable
interchangeable cross-reference
interchangeable
983-1INInterchangeable
interchangeable cross-reference
interchangeable
72309Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27030-9?
MS27030-9 is a GASKET.
What parts can replace MS27030-9?
There are 16 known substitutes for MS27030-9: K60-198, 5-5906, 16960 and 13 more. Substitute compatibility should be verified for your specific system.
Is MS27030-9 still available?
MS27030-9 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