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MMD-1804 — MMD-1804

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MMD-1804: MMD-1804.

The MMD-1804 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-452-9103, 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
MMD-1804
NSN: 5330-01-452-9103
FSC: 5330 — Packing and Gasket Materials
CAGE: 70433 — APPLETON MARINE INC (USA)
SPECIFICATIONS
Part NumberMMD-1804
NSN5330-01-452-9103
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MMD-1804 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: 0.130 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 1.000 INCHES NOMINAL IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 1.380 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE WIDTH: 8.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.130 INCHES NOMINAL IN
INSIDE CORNER RADIUS1.000 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH1.380 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH14.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH10.750 INCHES NOMINAL IN
APERTURE WIDTH8.000 INCHES NOMINAL IN
APERTURE LENGTH12.000 INCHES NOMINAL IN
BOLT HOLE QUANTITY8
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MMD-1804?
MMD-1804 is a MMD-1804.
What is the NSN for MMD-1804?
MMD-1804 is cataloged in the U.S. Government catalog under NSN 5330-01-452-9103. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.