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Technical Data Sheet
M-5519-0 ✓ 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 PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 4.875 INCHES NOMINAL IN, thread_length: 2.000 INCHES NOMINAL IN, vent_hole_shape: ROUND, special_features: TWO INCH FILL CAP AND VENT, OVERALL WIDTH IS 5.625 INCHES IN, vent_hole_diameter: 1.938 INCHES NOMINAL IN, end_connection_type: THREADED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-490-6757, 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
M-5519-0
NSN: 5340-01-490-6757
FSC: 5340
CAGE: 41592 — MORRISON BROTHERS CO DBA MORRISON BROTHERS CO (USA)
SPECIFICATIONS
length4.875 INCHES NOMINAL IN
thread_length2.000 INCHES NOMINAL IN
vent_hole_shapeROUND
special_featuresTWO INCH FILL CAP AND VENT, OVERALL WIDTH IS 5.625 INCHES IN
vent_hole_diameter1.938 INCHES NOMINAL IN
vent_hole_quantity1
end_connection_typeTHREADED
thread_size_and_series/type_designator11-5 NPT
NSN5340-01-490-6757
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M-5519-0 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
LENGTH: 4.875 INCHES NOMINAL IN
END CONNECTION TYPE: THREADED
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 11-5 NPT
VENT HOLE SHAPE: ROUND
VENT HOLE DIAMETER: 1.938 INCHES NOMINAL IN
VENT HOLE QUANTITY: 1
THREAD LENGTH: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
LENGTH4.875 INCHES NOMINAL IN
END CONNECTION TYPETHREADED
SPECIAL FEATURESTWO INCH FILL CAP AND VENT, OVERALL WIDTH IS 5.625 INCHES IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR11-5 NPT
VENT HOLE SHAPEROUND
VENT HOLE DIAMETER1.938 INCHES NOMINAL IN
VENT HOLE QUANTITY1
THREAD LENGTH2.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
37-9Upgraded Successor
successor cross-reference
successor
8637-9Upgraded Successor
successor cross-reference
successor
SCA8637PT9Upgraded Successor
successor cross-reference
successor
30X562Interchangeable
interchangeable cross-reference
interchangeable
12X199Interchangeable
interchangeable cross-reference
interchangeable
3064686Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-5519-0?
M-5519-0 is a PLUG,VENT.
What parts can replace M-5519-0?
There are 22 known substitutes for M-5519-0: 37-9, 8637-9, SCA8637PT9 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M-5519-0?
M-5519-0 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-490-6757. This indicates validated use in U.S. government and defense supply chains.
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