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PartsTable / COMPONENT / 12993487
12993487 ✓ 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 302 OVERALL, nut_style: HEXAGON, nut_height: 0.156 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, 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 5310-01-511-3119, 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
12993487
NSN: 5310-01-511-3119
FSC: 5310
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
nut_styleHEXAGON
nut_height0.156 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.438 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
end_item_identification2350-01-087-1095; TANK
thread_quantity_per_inch28
part_name_assigned_by_controlling_agencyFINISHED JAM HEXAGON MUT
NSN5310-01-511-3119
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12993487 · 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
•
NUT STYLE: HEXAGON
•
WIDTH ACROSS FLATS: 0.438 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 28
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.438 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD QUANTITY PER INCH28
NOMINAL THREAD SIZE0.250 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYFINISHED JAM HEXAGON MUT
END ITEM IDENTIFICATION2350-01-087-1095; TANK
THREAD CLASS2B
MATERIALSTEEL COMP 302 OVERALL
NUT HEIGHT0.156 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
SM-B-130562-3Interchangeable
interchangeable cross-reference
interchangeable
MDX3Interchangeable
interchangeable cross-reference
interchangeable
159-005Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12993487?
12993487 is a NUT,PLAIN,HEXAGON.
What parts can replace 12993487?
There are 3 known substitutes for 12993487: SM-B-130562-3, MDX3, 159-005. Substitute compatibility should be verified for your specific system.
What is the NSN for 12993487?
12993487 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-511-3119. 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