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Technical Data Sheet
PartsTable / COMPONENT / B3434-25
B3434-25 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 45.0 DEGREES NOMINAL, material: COPPER ALLOY OVERALL, peripheral_diameter: 0.547 INCHES NOMINAL IN, center_hole_diameter: 0.266 INCHES NOMINAL IN, cross-sectional_height: 0.375 INCHES NOMINAL IN, cross-sectional_shape_style: FLANGE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-361-9569, 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
B3434-25
NSN: 5330-00-361-9569
FSC: 5330
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)
SPECIFICATIONS
angle45.0 DEGREES NOMINAL
materialCOPPER ALLOY OVERALL
peripheral_diameter0.547 INCHES NOMINAL IN
center_hole_diameter0.266 INCHES NOMINAL IN
cross-sectional_height0.375 INCHES NOMINAL IN
cross-sectional_shape_styleFLANGE
flanged_body_outside_diameter0.391 INCHES NOMINAL IN
NSN5330-00-361-9569
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B3434-25 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
•
CROSS-SECTIONAL HEIGHT: 0.375 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.266 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY OVERALL
•
PERIPHERAL DIAMETER: 0.547 INCHES NOMINAL IN
•
ANGLE: 45.0 DEGREES NOMINAL
•
FLANGED BODY OUTSIDE DIAMETER: 0.391 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.375 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.266 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL DIAMETER0.547 INCHES NOMINAL IN
ANGLE45.0 DEGREES NOMINAL
FLANGED BODY OUTSIDE DIAMETER0.391 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
QQA200-3Interchangeable
interchangeable cross-reference
interchangeable
11069Interchangeable
interchangeable cross-reference
interchangeable
1002772Interchangeable
interchangeable cross-reference
interchangeable
1840-2Interchangeable
interchangeable cross-reference
interchangeable
798057Interchangeable
interchangeable cross-reference
interchangeable
SC-220-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3434-25?
B3434-25 is a RETAINER,PACKING.
What parts can replace B3434-25?
There are 12 known substitutes for B3434-25: QQA200-3, 11069, 1002772 and 9 more. Substitute compatibility should be verified for your specific system.
Is B3434-25 still available?
B3434-25 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026