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Technical Data Sheet
D12749 ✓ 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: ASBESTOS CHRYSOTILE AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL, outside_diameter: 6.000 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 5.375 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-244-8169, 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
D12749
NSN: 5330-00-244-8169
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialASBESTOS CHRYSOTILE AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
outside_diameter6.000 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter5.375 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationHH-P-46 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-244-8169
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D12749 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
APERTURE DIAMETER: 5.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION: HH-P-46 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL THICKNESS: 0.062 INCHES NOMINAL IN
OUTSIDE DIAMETER: 6.000 INCHES NOMINAL IN
MATERIAL: ASBESTOS CHRYSOTILE AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
STYLE DESIGNATOR: CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER5.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-46 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
OUTSIDE DIAMETER6.000 INCHES NOMINAL IN
MATERIALASBESTOS CHRYSOTILE AND RUBBER NATURAL OR RUBBER SYNTHETIC OVERALL
STYLE DESIGNATORCIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
12749Interchangeable
interchangeable cross-reference
interchangeable
572263Interchangeable
interchangeable cross-reference
interchangeable
1770XDMPC59Interchangeable
interchangeable cross-reference
interchangeable
1769XDMPC61Interchangeable
interchangeable cross-reference
interchangeable
127400-9Interchangeable
interchangeable cross-reference
interchangeable
123SCH145-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D12749?
D12749 is a GASKET.
What parts can replace D12749?
There are 6 known substitutes for D12749: 12749, 572263, 1770XDMPC59 and 3 more. Substitute compatibility should be verified for your specific system.
Is D12749 still available?
D12749 is currently cancelled.
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