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Technical Data Sheet
PartsTable / COMPONENT / HN-3/8-24
HN-3/8-24 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The HN-3/8-24 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-058-1626, 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
HN-3/8-24
NSN: 5310-00-058-1626
FSC: 5310
CAGE: 08289 — THE DELBERT BLINN CO INC (USA)
SPECIFICATIONS
Part NumberHN-3/8-24
NSN5310-00-058-1626
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HN-3/8-24 · 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 DIRECTION: RIGHT-HAND
•
THREAD SERIES: UNF
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
HARDNESS RATING: 80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
•
WIDTH ACROSS FLATS: 0.607 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD QUANTITY PER INCH: 24
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.375 INCHES IN
HARDNESS RATING80.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
WIDTH ACROSS FLATS0.607 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD QUANTITY PER INCH24
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2; A4 BRADLEY FIGHTING VEHICLE
NUT STYLEHEXAGON
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
134567Interchangeable
interchangeable cross-reference
interchangeable
AN345-616Interchangeable
interchangeable cross-reference
interchangeable
MILS933Interchangeable
interchangeable cross-reference
interchangeable
402352092Interchangeable
Same NIIN cross-reference
interchangeable
HNW-3824Interchangeable
Same NIIN cross-reference
interchangeable
911C208-8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HN-3/8-24?
HN-3/8-24 is a HN-3/8-24.
What parts can replace HN-3/8-24?
There are 9 known substitutes for HN-3/8-24: 134567, AN345-616, MILS933 and 6 more. Substitute compatibility should be verified for your specific system.
Is HN-3/8-24 still available?
HN-3/8-24 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026