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Technical Data Sheet
PartsTable / COMPONENT / M6328
M6328 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nut_height: 0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNEF, thread_direction: RIGHT-HAND, precious_material: SILVER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-973-8173, 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
M6328
NSN: 5310-00-973-8173
FSC: 5310
CAGE: 01221 — KALAMAZOO MACHINE CO (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNEF
thread_directionRIGHT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch32
precious_material_and_locationEXTERNAL SURFACE SILVER
NSN5310-00-973-8173
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: M6328 · 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
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD SERIES: UNEF
•
THREAD QUANTITY PER INCH: 32
•
WIDTH ACROSS FLATS: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
•
THREAD CLASS: 2B
•
NUT STYLE: HEXAGON
•
NUT HEIGHT: 0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD SERIESUNEF
THREAD QUANTITY PER INCH32
WIDTH ACROSS FLATS0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
THREAD CLASS2B
NUT STYLEHEXAGON
NUT HEIGHT0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
PRECIOUS MATERIAL AND LOCATIONEXTERNAL SURFACE SILVER
SURFACE TREATMENTSILVER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
70-1619Interchangeable
interchangeable cross-reference
interchangeable
10-1169Interchangeable
interchangeable cross-reference
interchangeable
2513Interchangeable
interchangeable cross-reference
interchangeable
153113Interchangeable
interchangeable cross-reference
interchangeable
015-3536-010Interchangeable
interchangeable cross-reference
interchangeable
101169-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M6328?
M6328 is a NUT,PLAIN,HEXAGON.
What parts can replace M6328?
There are 12 known substitutes for M6328: 70-1619, 10-1169, 2513 and 9 more. Substitute compatibility should be verified for your specific system.
Is M6328 still available?
M6328 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