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11579057 ✓ 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 PLUNGER,QUICK RELEASE is a the manufacturer industrial component. Key specifications include shape: ROUND, thread_length: 0.531 INCHES NOMINAL IN, overall_length: 0.531 INCHES NOMINAL IN, special_features: INCLUDES NYLON LOCKING ELEMENT IN THREADS, nominal_thread_size: 0.250 INCHES IN, thread_quantity_per_inch: 20. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-047-4336, 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
11579057
NSN: 5340-01-047-4336
FSC: 5340
CAGE: 19206 — ARMY, UNITED STATES DEPARTMENT OF THE DBA WATERVLIET ARSENAL DIV BUSINESS DEVELOPMENT (USA)
SPECIFICATIONS
shapeROUND
thread_length0.531 INCHES NOMINAL IN
overall_length0.531 INCHES NOMINAL IN
special_featuresINCLUDES NYLON LOCKING ELEMENT IN THREADS
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5340-01-047-4336
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 11579057 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
•
SHAPE: ROUND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD LENGTH: 0.531 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS (FLIS)
SHAPEROUND
OVERALL LENGTH0.531 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD LENGTH0.531 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
SPECIAL FEATURESINCLUDES NYLON LOCKING ELEMENT IN THREADS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
20-11110Interchangeable
interchangeable cross-reference
interchangeable
5999PL0906252Interchangeable
interchangeable cross-reference
interchangeable
11110Interchangeable
interchangeable cross-reference
interchangeable
67A312D23Interchangeable
interchangeable cross-reference
interchangeable
BA10108-5Interchangeable
interchangeable cross-reference
interchangeable
R212506CHANGE3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11579057?
11579057 is a PLUNGER,QUICK RELEASE.
What parts can replace 11579057?
There are 18 known substitutes for 11579057: 20-11110, 5999PL0906252, 11110 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11579057?
11579057 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-047-4336. 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