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Technical Data Sheet
8519ITEM42 ✓ 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 CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include color: OLIVE DRAB, material: ALUMINUM ALLOY OVERALL, thread_length: 0.562 INCHES NOMINAL IN, overall_height: 1.322 INCHES NOMINAL IN, thread_diameter: 3.000 INCHES NOMINAL IN, thread_quantity: 8 PER INCH. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-399-1316, 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
8519ITEM42
NSN: 5340-00-399-1316
FSC: 5340
CAGE: 83590 — SMITH METER INC PARTS OPN (USA)
SPECIFICATIONS
colorOLIVE DRAB
materialALUMINUM ALLOY OVERALL
thread_length0.562 INCHES NOMINAL IN
overall_height1.322 INCHES NOMINAL IN
thread_diameter3.000 INCHES NOMINAL IN
thread_quantity8 PER INCH
outside_diameter3.500 INCHES NOMINAL IN
style_designatorCIRCULAR TYPE THREADED INTERNAL
surface_treatmentPAINT OVERALL
accommodation_typeHANDLE END GRIPPING
thread_pitch_diameters+2.9188 TO 2.9299 INCHES IN
thread_series_designatorUN
NSN5340-00-399-1316
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8519ITEM42 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
THREAD LENGTH: 0.562 INCHES NOMINAL IN
MATERIAL: ALUMINUM ALLOY OVERALL
SURFACE TREATMENT: PAINT OVERALL
STYLE DESIGNATOR: CIRCULAR TYPE THREADED INTERNAL
THREAD QUANTITY: 8 PER INCH
SYSTEM FOR WHICH DESIGNED: NONPRESSURIZED
ACCOMMODATION TYPE: HANDLE END GRIPPING
THREAD SERIES DESIGNATOR: UN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH0.562 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY OVERALL
SURFACE TREATMENTPAINT OVERALL
STYLE DESIGNATORCIRCULAR TYPE THREADED INTERNAL
THREAD QUANTITY8 PER INCH
SYSTEM FOR WHICH DESIGNEDNONPRESSURIZED
ACCOMMODATION TYPEHANDLE END GRIPPING
THREAD SERIES DESIGNATORUN
THREAD DIAMETER3.000 INCHES NOMINAL IN
COLOROLIVE DRAB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
25137Upgraded Successor
successor cross-reference
successor
QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
K40A144T3511Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
MS14377E035Interchangeable
interchangeable cross-reference
interchangeable
K40A1440Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8519ITEM42?
8519ITEM42 is a CAP,FILLER OPENING.
What parts can replace 8519ITEM42?
There are 11 known substitutes for 8519ITEM42: 25137, QQ-A-200/3, K40A144T3511 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8519ITEM42?
8519ITEM42 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-399-1316. This indicates validated use in U.S. government and defense supply chains.
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