PartsTable
Technical Data Sheet
WD261-3 ✓ 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 OVERALL, outside_diameter: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 1.256 INCHES MINIMUM AND 1.276 INCHES MAXIMUM IN, cross-sectional_thickness: 0.010 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-291-9871, 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
WD261-3
NSN: 5330-00-291-9871
FSC: 5330
CAGE: 79150 — DANA AUTOMOTIVE SYSTEMS GROUP, LLC DBA DANA SEALING PRODUCTS (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
outside_diameter1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter1.256 INCHES MINIMUM AND 1.276 INCHES MAXIMUM IN
cross-sectional_thickness0.010 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,NO. +3313-B MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-291-9871
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: WD261-3 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS: 0.010 INCHES NOMINAL IN
APERTURE DIAMETER: 1.256 INCHES MINIMUM AND 1.276 INCHES MAXIMUM IN
MATERIAL: PAPER AND GLUE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,NO. +3313-B MIL SPEC ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATOR: CIRCULAR
OUTSIDE DIAMETER: 1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.010 INCHES NOMINAL IN
APERTURE DIAMETER1.256 INCHES MINIMUM AND 1.276 INCHES MAXIMUM IN
MATERIALPAPER AND GLUE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,NO. +3313-B MIL SPEC ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORCIRCULAR
OUTSIDE DIAMETER1.428 INCHES MINIMUM AND 1.448 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
F89F364Interchangeable
interchangeable cross-reference
interchangeable
44334Interchangeable
interchangeable cross-reference
interchangeable
9-44334Interchangeable
interchangeable cross-reference
interchangeable
00944334000Interchangeable
interchangeable cross-reference
interchangeable
5334700Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is WD261-3?
WD261-3 is a GASKET.
What parts can replace WD261-3?
There are 5 known substitutes for WD261-3: F89F364, 44334, 9-44334 and 2 more. Substitute compatibility should be verified for your specific system.
Is WD261-3 still available?
WD261-3 is currently cancelled.
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