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PartsTable / COMPONENT / SCD1640ITEM38
SCD1640ITEM38 ✓ 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: PAPER OVERALL, hole_diameter: 0.219 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 3.375 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.781 INCHES NOMINAL IN, bolt_circle_diameter: 2.875 INCHES NOMINAL 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 5330-00-189-8909, 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
SCD1640ITEM38
NSN: 5330-00-189-8909
FSC: 5330
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialPAPER OVERALL
hole_diameter0.219 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter3.375 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.781 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter2.875 INCHES NOMINAL IN
cross-sectional_thickness0.016 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-189-8909
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SCD1640ITEM38 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
•
STYLE DESIGNATOR: CIRCULAR
•
OUTSIDE DIAMETER: 3.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.016 INCHES NOMINAL IN
•
MATERIAL: PAPER OVERALL
•
BOLT HOLE QUANTITY: 4
•
BOLT CIRCLE DIAMETER: 2.875 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.219 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
APERTURE DIAMETER: 1.781 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER3.375 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.016 INCHES NOMINAL IN
MATERIALPAPER OVERALL
BOLT HOLE QUANTITY4
BOLT CIRCLE DIAMETER2.875 INCHES NOMINAL IN
HOLE DIAMETER0.219 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER1.781 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
306-67-4MInterchangeable
interchangeable cross-reference
interchangeable
PC9F36GInterchangeable
interchangeable cross-reference
interchangeable
6191Interchangeable
interchangeable cross-reference
interchangeable
61254Interchangeable
interchangeable cross-reference
interchangeable
10-504088Interchangeable
interchangeable cross-reference
interchangeable
AN805-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SCD1640ITEM38?
SCD1640ITEM38 is a GASKET.
What parts can replace SCD1640ITEM38?
There are 17 known substitutes for SCD1640ITEM38: 306-67-4M, PC9F36G, 6191 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SCD1640ITEM38?
SCD1640ITEM38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-189-8909. 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