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Technical Data Sheet
PartsTable / COMPONENT / 3T9M397-4-3
3T9M397-4-3 ✓ 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: 0.5312 INCHES NOMINAL IN, overall_length: 0.5312 INCHES NOMINAL IN, end_pressure_rating: 12.000 POUNDS NOMINAL LBS, 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 5340-00-068-8128, 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
3T9M397-4-3
NSN: 5340-00-068-8128
FSC: 5340
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
shapeROUND
thread_length0.5312 INCHES NOMINAL IN
overall_length0.5312 INCHES NOMINAL IN
end_pressure_rating12.000 POUNDS NOMINAL LBS
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5340-00-068-8128
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3T9M397-4-3 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 QUANTITY PER INCH: 20
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
THREAD LENGTH: 0.5312 INCHES NOMINAL IN
•
SHAPE: ROUND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
END PRESSURE RATING: 12.000 POUNDS NOMINAL LBS
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD LENGTH0.5312 INCHES NOMINAL IN
SHAPEROUND
OVERALL LENGTH0.5312 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.250 INCHES IN
END PRESSURE RATING12.000 POUNDS NOMINAL LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
24127Upgraded Successor
successor cross-reference
successor
14130Interchangeable
interchangeable cross-reference
interchangeable
M14130Interchangeable
interchangeable cross-reference
interchangeable
2111 27/64Interchangeable
interchangeable cross-reference
interchangeable
NAS907Interchangeable
interchangeable cross-reference
interchangeable
NAS907 TYASZ27/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3T9M397-4-3?
3T9M397-4-3 is a PLUNGER,QUICK RELEASE.
What parts can replace 3T9M397-4-3?
There are 7 known substitutes for 3T9M397-4-3: 24127, 14130, M14130 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3T9M397-4-3?
3T9M397-4-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-068-8128. 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