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Technical Data Sheet
NAS1831C3806 ✓ 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: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, nut_style: HEXAGON, nut_height: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-199-4383, 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
NAS1831C3806
NSN: 5310-01-199-4383
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
nut_styleHEXAGON
nut_height0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES IN
bearing_surface_typeFLAT
thread_quantity_per_inch40
specification/standard_data80205-NAS1831 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5310-01-199-4383
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1831C3806 · 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: 0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH: 40
BEARING SURFACE TYPE: FLAT
NOMINAL THREAD SIZE: 0.112 INCHES IN
NUT HEIGHT: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
NUT STYLE: HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WIDTH ACROSS FLATS0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE0.112 INCHES IN
NUT HEIGHT0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
10121550Interchangeable
interchangeable cross-reference
interchangeable
M-15687-0Interchangeable
interchangeable cross-reference
interchangeable
NAS1786C04-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS1831C3806?
NAS1831C3806 is a NUT,PLAIN,HEXAGON.
What parts can replace NAS1831C3806?
There are 3 known substitutes for NAS1831C3806: 10121550, M-15687-0, NAS1786C04-6. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1831C3806?
NAS1831C3806 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-199-4383. This indicates validated use in U.S. government and defense supply chains.
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