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Technical Data Sheet
PartsTable / COMPONENT / SCD1637ITEM20
SCD1637ITEM20 ✓ 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 material: LEATHER OVERALL, outside_diameter: 3.500 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.875 INCHES NOMINAL IN, cross-sectional_thickness: 0.125 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-189-8892, 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
SCD1637ITEM20
NSN: 5330-00-189-8892
FSC: 5330
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialLEATHER OVERALL
outside_diameter3.500 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.875 INCHES NOMINAL IN
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-189-8892
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SCD1637ITEM20 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
•
APERTURE DIAMETER: 2.875 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
MATERIAL: LEATHER OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER2.875 INCHES NOMINAL IN
OUTSIDE DIAMETER3.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
MATERIALLEATHER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
24X110MONELInterchangeable
interchangeable cross-reference
interchangeable
61119Interchangeable
interchangeable cross-reference
interchangeable
5305001440392Interchangeable
interchangeable cross-reference
interchangeable
2A1309Interchangeable
interchangeable cross-reference
interchangeable
651192Interchangeable
interchangeable cross-reference
interchangeable
116184Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SCD1637ITEM20?
SCD1637ITEM20 is a GASKET.
What parts can replace SCD1637ITEM20?
There are 8 known substitutes for SCD1637ITEM20: 24X110MONEL, 61119, 5305001440392 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SCD1637ITEM20?
SCD1637ITEM20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-189-8892. 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