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A3439 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A3439: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include end_item_identification: 7320-01-230-4367. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-149-9855, 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
A3439
NSN: 5310-01-149-9855
NIINs: 011499855, 012724647
FSC: 5310 — Nuts and Washers
CAGE: 24692 — HARTZELL PROPELLER LLC (USA)
SPECIFICATIONS
end_item_identification7320-01-230-4367
NSN5310-01-149-9855
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A3439 · 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
•
WIDTH ACROSS FLATS: 0.600 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
SUPPLEMENTARY FEATURES: MADE FROM AN316-6R NSN 5310-00-167-1300
•
THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 0.375 INCHES IN
•
NUT HEIGHT: 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.600 INCHES NOMINAL IN
THREAD SERIESUNF
SUPPLEMENTARY FEATURESMADE FROM AN316-6R NSN 5310-00-167-1300
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
NUT HEIGHT0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD CLASS3B
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
THREAD QUANTITY PER INCH24
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A3439?
A3439 is a NUT,PLAIN,HEXAGON.
What is the NSN for A3439?
A3439 is cataloged in the U.S. Government catalog under NSN 5310-01-149-9855. 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.