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DB7109 ✓ 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 AND GLUE AND GLYCERIN OVERALL, hole_diameter: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.250 INCHES NOMINAL IN, aperture_width: 3.125 INCHES NOMINAL IN, overall_length: 31.500 INCHES NOMINAL IN, aperture_length: 30.625 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 5330-00-297-5151, 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
DB7109
NSN: 5330-00-297-5151
FSC: 5330
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
materialPAPER AND GLUE AND GLYCERIN OVERALL
hole_diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.250 INCHES NOMINAL IN
aperture_width3.125 INCHES NOMINAL IN
overall_length31.500 INCHES NOMINAL IN
aperture_length30.625 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
bolt_hole_quantity28
inside_corner_radius0.688 INCHES NOMINAL IN
outside_corner_radius1.250 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-297-5151
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DB7109 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 DOCUMENT AND CLASSIFICATION: HH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
APERTURE LENGTH: 30.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
INSIDE CORNER RADIUS: 0.688 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL: PAPER AND GLUE AND GLYCERIN OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
APERTURE LENGTH30.625 INCHES NOMINAL IN
OVERALL WIDTH4.250 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
INSIDE CORNER RADIUS0.688 INCHES NOMINAL IN
HOLE DIAMETER0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALPAPER AND GLUE AND GLYCERIN OVERALL
OVERALL LENGTH31.500 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
7109Interchangeable
interchangeable cross-reference
interchangeable
3110001420908Interchangeable
interchangeable cross-reference
interchangeable
FS7109Interchangeable
interchangeable cross-reference
interchangeable
610496Interchangeable
interchangeable cross-reference
interchangeable
10689632-5Interchangeable
interchangeable cross-reference
interchangeable
525-044Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DB7109?
DB7109 is a GASKET.
What parts can replace DB7109?
There are 19 known substitutes for DB7109: 7109, 3110001420908, FS7109 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DB7109?
DB7109 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-5151. 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