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Technical Data Sheet
1127886 MK 5 ✓ 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 BLOCK,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC, special_features: GOES IN A SIZE 6 MAXI WB FLEX RIDGE VERTICAL COUPLING; 80 DUROMETER BLOCKS, end_item_identification: COUPLING, FLEX RIDGE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-566-7968, 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
1127886 MK 5
NSN: 5340-01-566-7968
FSC: 5340
CAGE: 75394 — EMERSON POWER TRANSMISSION CORPORATION DBA EMERSON DIV EMERSON POWER TRANSMISSION DIVISION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
special_featuresGOES IN A SIZE 6 MAXI WB FLEX RIDGE VERTICAL COUPLING; 80 DUROMETER BLOCKS
end_item_identificationCOUPLING, FLEX RIDGE
NSN5340-01-566-7968
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1127886 MK 5 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: RUBBER SYNTHETIC
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONCOUPLING, FLEX RIDGE
MATERIALRUBBER SYNTHETIC
SPECIAL FEATURESGOES IN A SIZE 6 MAXI WB FLEX RIDGE VERTICAL COUPLING; 80 DUROMETER BLOCKS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
1113325Interchangeable
interchangeable cross-reference
interchangeable
B1451-1Interchangeable
interchangeable cross-reference
interchangeable
1109168Interchangeable
interchangeable cross-reference
interchangeable
107-23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1127886 MK 5?
1127886 MK 5 is a BLOCK,NONMETALLIC.
What parts can replace 1127886 MK 5?
There are 4 known substitutes for 1127886 MK 5: 1113325, B1451-1, 1109168 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1127886 MK 5?
1127886 MK 5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-566-7968. This indicates validated use in U.S. government and defense supply chains.
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