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Technical Data Sheet
PartsTable / O-RING / MDD-1000-2
MDD-1000-2 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, center_hole_diameter: 1.728 INCHES MINIMUM AND 1.740 INCHES MAXIMUM IN, cross-sectional_height: 0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-143-8252, 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
MDD-1000-2
NSN: 5331-01-143-8252
FSC: 5331 — O-RING
CAGE: 06793 — BELSHAW BROS., INC. DBA BELSHAW BROS INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter1.728 INCHES MINIMUM AND 1.740 INCHES MAXIMUM IN
cross-sectional_height0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN
NSN5331-01-143-8252
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MDD-1000-2 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 SYNTHETIC
•
CENTER HOLE DIAMETER: 1.728 INCHES MINIMUM AND 1.740 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
CENTER HOLE DIAMETER1.728 INCHES MINIMUM AND 1.740 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
64C1006-2Interchangeable
interchangeable cross-reference
interchangeable
80737Interchangeable
interchangeable cross-reference
interchangeable
ARL80737Interchangeable
interchangeable cross-reference
interchangeable
RU-701Interchangeable
interchangeable cross-reference
interchangeable
33-0240Interchangeable
interchangeable cross-reference
interchangeable
17003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MDD-1000-2?
MDD-1000-2 is a O-RING.
What parts can replace MDD-1000-2?
There are 7 known substitutes for MDD-1000-2: 64C1006-2, 80737, ARL80737 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MDD-1000-2?
MDD-1000-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-143-8252. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026