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PartsTable / COMPONENT / NAS1786B3-2
NAS1786B3-2 ✓ 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 material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.125 INCHES NOMINAL IN, thread_series: UNF, thread_direction: RIGHT-HAND, width_across_flats: 0.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-078-8064, 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
NAS1786B3-2
NSN: 5310-01-078-8064
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleHEXAGON
nut_height0.125 INCHES NOMINAL IN
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.190 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch32
NSN5310-01-078-8064
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1786B3-2 · 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
•
MATERIAL: COPPER ALLOY OVERALL
•
THREAD SERIES: UNF
•
BEARING SURFACE TYPE: FLAT
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
NUT HEIGHT: 0.125 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
THREAD SERIESUNF
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE0.190 INCHES IN
NUT HEIGHT0.125 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
MS35649-105Interchangeable
interchangeable cross-reference
interchangeable
271167Interchangeable
interchangeable cross-reference
interchangeable
002-003990-019Interchangeable
interchangeable cross-reference
interchangeable
HNA563BInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS1786B3-2?
NAS1786B3-2 is a NUT,PLAIN,HEXAGON.
What parts can replace NAS1786B3-2?
There are 4 known substitutes for NAS1786B3-2: MS35649-105, 271167, 002-003990-019 and 1 more. Substitute compatibility should be verified for your specific system.
Is NAS1786B3-2 still available?
NAS1786B3-2 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