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Technical Data Sheet

2B3705 — Technical Data Sheet

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— · 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 outside_diameter: 2.359 INCHES NOMINAL IN, aperture_diameter: 2.172 INCHES NOMINAL IN, cross-sectional_thickness: 0.188 INCHES NOMINAL IN, material_document_and_classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System under NSN 5330-00-291-3973, 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
2B3705
NSN: 5330-00-291-3973
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
outside_diameter2.359 INCHES NOMINAL IN
aperture_diameter2.172 INCHES NOMINAL IN
cross-sectional_thickness0.188 INCHES NOMINAL IN
material_document_and_classificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-291-3973
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2B3705 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: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 2.359 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.188 INCHES NOMINAL IN
•
APERTURE DIAMETER: 2.172 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER2.359 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.188 INCHES NOMINAL IN
APERTURE DIAMETER2.172 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
12420471InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12420471-002InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
17591InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2B3705?
2B3705 is a GASKET.
What parts can replace 2B3705?
There are 3 known substitutes for 2B3705: 12420471, 12420471-002, 17591. Substitute compatibility should be verified for your specific system.
Is 2B3705 still available?
2B3705 is currently cancelled.
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