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PartsTable / COMPONENT / D25343-2
D25343-2 ✓ 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: STEEL COMP 416 OVERALL, nut_style: HEXAGON, nut_height: 0.375 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNEF, 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 5310-00-829-0196, 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
D25343-2
NSN: 5310-00-829-0196
FSC: 5310
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
nut_styleHEXAGON
nut_height0.375 INCHES NOMINAL IN
thread_class2B
thread_seriesUNEF
thread_directionRIGHT-HAND
width_across_flats1.125 INCHES NOMINAL IN
nominal_thread_size0.812 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch20
material_document_and_classificationASTM A582 COMP 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-829-0196
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D25343-2 · 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
•
THREAD QUANTITY PER INCH: 20
•
NOMINAL THREAD SIZE: 0.812 INCHES IN
•
THREAD SERIES: UNEF
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL COMP 416 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 COMP 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NUT HEIGHT: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH20
NOMINAL THREAD SIZE0.812 INCHES IN
THREAD SERIESUNEF
BEARING SURFACE TYPECHAMFERED
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 416 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 COMP 416 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NUT HEIGHT0.375 INCHES NOMINAL IN
THREAD CLASS2B
WIDTH ACROSS FLATS1.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1741Interchangeable
interchangeable cross-reference
interchangeable
944095-1Interchangeable
interchangeable cross-reference
interchangeable
1740Interchangeable
interchangeable cross-reference
interchangeable
851623Interchangeable
interchangeable cross-reference
interchangeable
059-7Interchangeable
interchangeable cross-reference
interchangeable
P9618526-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D25343-2?
D25343-2 is a NUT,PLAIN,HEXAGON.
What parts can replace D25343-2?
There are 20 known substitutes for D25343-2: 1741, 944095-1, 1740 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D25343-2?
D25343-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-829-0196. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026