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Technical Data Sheet
D74549 ✓ 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 SEAL,OIL is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-187-0019, 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
D74549
NSN: 5330-00-187-0019
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
Part NumberD74549
NSN5330-00-187-0019
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D74549 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
74549Interchangeable
interchangeable cross-reference
interchangeable
G18206Interchangeable
interchangeable cross-reference
interchangeable
25267Interchangeable
interchangeable cross-reference
interchangeable
78903Interchangeable
interchangeable cross-reference
interchangeable
71625Interchangeable
interchangeable cross-reference
interchangeable
8455008989730Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D74549?
D74549 is a SEAL,OIL.
What parts can replace D74549?
There are 8 known substitutes for D74549: 74549, G18206, 25267 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D74549?
D74549 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-187-0019. This indicates validated use in U.S. government and defense supply chains.
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