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6397389-42 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6397389-42: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: TITANIUM OVERALL, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), nominal_thread_size: 0.312 INCHES IN, end_item_identification: CTFGL PUMP 2000 GPM; NIMITZ CLASS CVN; FORRESTAL CLASS CV; WASP CLASS LHD; TARAWA CLASS LHA, thread_quantity_per_inch: 18. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-348-5774, 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
6397389-42
NSN: 5310-01-348-5774
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialTITANIUM OVERALL
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
nominal_thread_size0.312 INCHES IN
end_item_identificationCTFGL PUMP 2000 GPM; NIMITZ CLASS CVN; FORRESTAL CLASS CV; WASP CLASS LHD; TARAWA CLASS LHA
thread_quantity_per_inch18
NSN5310-01-348-5774
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6397389-42 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
THREAD CLASS: 2B
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: TITANIUM OVERALL
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD CLASS2B
END ITEM IDENTIFICATIONCTFGL PUMP 2000 GPM; NIMITZ CLASS CVN; FORRESTAL CLASS CV; WASP CLASS LHD; TARAWA CLASS LHA
THREAD QUANTITY PER INCH18
MATERIALTITANIUM OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
6397389 PIECE 42Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6397389-42?
6397389-42 is a NUT,PLAIN,HEXAGON.
What parts can replace 6397389-42?
There is 1 known substitute for 6397389-42: 6397389 PIECE 42. Substitute compatibility should be verified for your specific system.
What is the NSN for 6397389-42?
6397389-42 is cataloged in the U.S. Government catalog under NSN 5310-01-348-5774. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.