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M677 ✓ 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 end_item_identification: KC-46 AIRCRAFT, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-080-0131, 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
M677
NSN: 5330-00-080-0131
FSC: 5330
CAGE: 0AFL4 — CHAMPION AEROSPACE LLC (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5330-00-080-0131
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M677 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: AMS 5047 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1010 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5047 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1010 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
6800611Interchangeable
interchangeable cross-reference
interchangeable
101629Interchangeable
interchangeable cross-reference
interchangeable
362-509-9001Interchangeable
interchangeable cross-reference
interchangeable
5330PL1989356Interchangeable
interchangeable cross-reference
interchangeable
101585Interchangeable
interchangeable cross-reference
interchangeable
M677Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M677?
M677 is a GASKET.
What parts can replace M677?
There are 8 known substitutes for M677: 6800611, 101629, 362-509-9001 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M677?
M677 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-080-0131. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026