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Technical Data Sheet
3404-9 ITEM 11 ✓ 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: RUBBER BUTADIENE-STYRENE CLASS SBR OVERALL, hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.625 INCHES NOMINAL IN, overall_length: 4.625 INCHES NOMINAL IN, hardness_rating: 50.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL, style_designator: NON-CIRCULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-162-5670, 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
3404-9 ITEM 11
NSN: 5330-00-162-5670
FSC: 5330
CAGE: 25316 — GENERAL DYNAMICS CORP QUNICY SHIPBUILDING DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.625 INCHES NOMINAL IN
overall_length4.625 INCHES NOMINAL IN
hardness_rating50.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
style_designatorNON-CIRCULAR
aperture_diameter3.250 INCHES NOMINAL IN
bolt_hole_quantity4
end_item_identificationOLIVER PERRY CLASS FFG; MAIN FEED PUMPS; SPRUANCE CLASS DD (963); STURGEON CLASS SSN (637); LOS ANGELES CLASS SSN (688); KIDD CLASS DDG; TICONDEROGA CLASS CG (47); VIRGINIA CLASS CGN (41)
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-1149,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-162-5670
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3404-9 ITEM 11 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: NON-CIRCULAR
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 3.376 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 3.376 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER: 3.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORNON-CIRCULAR
OVERALL LENGTH4.625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.376 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH3.376 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE DIAMETER3.250 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
44108A AND 3666 8AInterchangeable
interchangeable cross-reference
interchangeable
A-44108-BInterchangeable
interchangeable cross-reference
interchangeable
JANR1149Interchangeable
interchangeable cross-reference
interchangeable
44108BInterchangeable
Same NIIN cross-reference
interchangeable
D78-944-31 PIECE 29Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3404-9 ITEM 11?
3404-9 ITEM 11 is a GASKET.
What parts can replace 3404-9 ITEM 11?
There are 5 known substitutes for 3404-9 ITEM 11: 44108A AND 3666 8A, A-44108-B, JANR1149 and 2 more. Substitute compatibility should be verified for your specific system.
Is 3404-9 ITEM 11 still available?
3404-9 ITEM 11 is currently cancelled.
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