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NAS1831-3B04 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

NAS1831-3B04: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: HEXAGON, nut_height: 0.250 INCHES NOMINAL IN, thread_class: 2B RIGHT INTERNAL, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND RIGHT INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-114-0110, 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
NAS1831-3B04
NSN: 5310-00-114-0110
NIINs: 001140110, 011779747
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleHEXAGON
nut_height0.250 INCHES NOMINAL IN
thread_class2B RIGHT INTERNAL
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND RIGHT INTERNAL
surface_treatmentPASSIVATE OVERALL
width_across_flats0.184 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
nominal_thread_size0.112 INCHES RIGHT INTERNAL IN
bearing_surface_typeFLAT
cross-sectional_shapeHEXAGON
cross-sectional_length0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM IN
NSN5310-00-114-0110
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1831-3B04 · 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: 0.190 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
NUT HEIGHT: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.190 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
NUT HEIGHT0.250 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH40
SUBSTITUTES & CROSS-REFERENCES 5
860314-58Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
US8102SS0440-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H50-1006-405Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
4M95C04-2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
8102SS0440-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is NAS1831-3B04?
NAS1831-3B04 is a NUT,PLAIN,HEXAGON.
What parts can replace NAS1831-3B04?
There are 5 known substitutes for NAS1831-3B04: 860314-58, US8102SS0440-7, H50-1006-405 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1831-3B04?
NAS1831-3B04 is cataloged in the U.S. Government catalog under NSN 5310-00-114-0110. 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.