PartsTable
Technical Data Sheet
21839DB ✓ 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: CELLULOSE AND RUBBER OVERALL, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 3.875 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.844 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN, bolt_circle_diameter: 3.312 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-5035, 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
21839DB
NSN: 5330-00-297-5035
FSC: 5330
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
materialCELLULOSE AND RUBBER OVERALL
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter3.875 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.844 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
bolt_hole_quantity4
bolt_circle_diameter3.312 INCHES NOMINAL IN
cross-sectional_thickness0.032 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-297-5035
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21839DB 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
OUTSIDE DIAMETER: 3.875 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER: 3.312 INCHES NOMINAL IN
HOLE DIAMETER: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS: 0.032 INCHES NOMINAL IN
APERTURE DIAMETER: 2.844 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
BOLT HOLE QUANTITY: 4
STYLE DESIGNATOR: CIRCULAR
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER3.875 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER3.312 INCHES NOMINAL IN
HOLE DIAMETER0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.032 INCHES NOMINAL IN
APERTURE DIAMETER2.844 INCHES MINIMUM AND 2.875 INCHES MAXIMUM IN
BOLT HOLE QUANTITY4
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALCELLULOSE AND RUBBER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
110 1-5/16Interchangeable
interchangeable cross-reference
interchangeable
209Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-751 TYEInterchangeable
interchangeable cross-reference
interchangeable
30301Interchangeable
interchangeable cross-reference
interchangeable
633510LInterchangeable
interchangeable cross-reference
interchangeable
FCD25050LInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy 21839DB?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 21839DB?
21839DB is a GASKET.
What parts can replace 21839DB?
There are 16 known substitutes for 21839DB: 110 1-5/16, 209, GGG-D-751 TYE and 13 more. Substitute compatibility should be verified for your specific system.
Is 21839DB still available?
21839DB is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 21839DB