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PartsTable / COMPONENT / M5501/1-R6
M5501/1-R6 ✓ 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 M5501/1-R6 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-286-4146, 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
M5501/1-R6
NSN: 5340-00-286-4146
FSC: 5340
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberM5501/1-R6
NSN5340-00-286-4146
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M5501/1-R6 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
•
DESIGN TYPE: THREADED
•
FEATURES PROVIDED: SHOULDER
•
MATERIAL: PLASTIC
•
THREAD CLASS: 3A A
•
OVERALL DIAMETER: 1.063 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND 6 SIZE
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 9/16-18 UNF
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPETHREADED
FEATURES PROVIDEDSHOULDER
MATERIALPLASTIC
THREAD CLASS3A A
OVERALL DIAMETER1.063 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA3 TYPE AND 6 SIZE
THREAD SIZE AND SERIES/TYPE DESIGNATOR9/16-18 UNF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
KAPPEMB10R18Upgraded Successor
successor cross-reference
successor
FC-719Upgraded Successor
successor cross-reference
successor
494115000800Upgraded Successor
successor cross-reference
successor
5340PL0169464Upgraded Successor
successor cross-reference
successor
MS25177-18Upgraded Successor
successor cross-reference
successor
025-0484-000Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M5501/1-R6?
M5501/1-R6 is a M5501/1-R6.
What parts can replace M5501/1-R6?
There are 18 known substitutes for M5501/1-R6: KAPPEMB10R18, FC-719, 494115000800 and 15 more. Substitute compatibility should be verified for your specific system.
Is M5501/1-R6 still available?
M5501/1-R6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026