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MAI28-21145 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MAI28-21145: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include outside_diameter: 4.220 INCHES NOMINAL IN, aperture_diameter: 3.845 INCHES NOMINAL IN, cross-sectional_thickness: 0.082 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-111-9284, 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
MAI28-21145
NSN: 5330-01-111-9284
FSC: 5330 — Packing and Gasket Materials
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
outside_diameter4.220 INCHES NOMINAL IN
aperture_diameter3.845 INCHES NOMINAL IN
cross-sectional_thickness0.082 INCHES NOMINAL IN
NSN5330-01-111-9284
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MAI28-21145 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: 0.082 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 4.220 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.845 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.082 INCHES NOMINAL IN
OUTSIDE DIAMETER4.220 INCHES NOMINAL IN
APERTURE DIAMETER3.845 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
51-9115-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MAI28-21145?
MAI28-21145 is a GASKET.
What parts can replace MAI28-21145?
There is 1 known substitute for MAI28-21145: 51-9115-01. Substitute compatibility should be verified for your specific system.
What is the NSN for MAI28-21145?
MAI28-21145 is cataloged in the U.S. Government catalog under NSN 5330-01-111-9284. This indicates validated use in U.S. government and defense supply chains.
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