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PartsTable / COMPONENT / A399 NON-ASBESTOS
A399 NON-ASBESTOS ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include angle: 30.0 DEGREES NOMINAL, special_features: MADE FROM NON-ASBESTOS MATERIAL, peripheral_diameter: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN, center_hole_diameter: 0.310 INCHES NOMINAL IN, cross-sectional_height: 0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN, cross-sectional_shape_style: ANGLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-380-9072, 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
A399 NON-ASBESTOS
NSN: 5330-01-380-9072
FSC: 5330
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
angle30.0 DEGREES NOMINAL
special_featuresMADE FROM NON-ASBESTOS MATERIAL
peripheral_diameter0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
center_hole_diameter0.310 INCHES NOMINAL IN
cross-sectional_height0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
cross-sectional_shape_styleANGLE
environmental_attribute_codeASBESTOS ALTERNATIVE PRODUCTS
NSN5330-01-380-9072
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A399 NON-ASBESTOS 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
•
ENVIRONMENTAL ATTRIBUTE CODE: ASBESTOS ALTERNATIVE PRODUCTS
•
PERIPHERAL DIAMETER: 0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
•
ANGLE: 30.0 DEGREES NOMINAL
•
CENTER HOLE DIAMETER: 0.310 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ANGLE
•
CROSS-SECTIONAL HEIGHT: 0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
ENVIRONMENTAL ATTRIBUTE CODEASBESTOS ALTERNATIVE PRODUCTS
PERIPHERAL DIAMETER0.491 INCHES MINIMUM AND 0.495 INCHES MAXIMUM IN
ANGLE30.0 DEGREES NOMINAL
SPECIAL FEATURESMADE FROM NON-ASBESTOS MATERIAL
CENTER HOLE DIAMETER0.310 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEANGLE
CROSS-SECTIONAL HEIGHT0.380 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
A399-500Interchangeable
interchangeable cross-reference
interchangeable
A399Interchangeable
interchangeable cross-reference
interchangeable
E628Interchangeable
interchangeable cross-reference
interchangeable
P32G3345Interchangeable
interchangeable cross-reference
interchangeable
5N268Interchangeable
interchangeable cross-reference
interchangeable
512865 PC 3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A399 NON-ASBESTOS?
A399 NON-ASBESTOS is a PACKING,PREFORMED.
What parts can replace A399 NON-ASBESTOS?
There are 6 known substitutes for A399 NON-ASBESTOS: A399-500, A399, E628 and 3 more. Substitute compatibility should be verified for your specific system.
Is A399 NON-ASBESTOS still available?
A399 NON-ASBESTOS 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