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PartsTable / COMPONENT / 12720006-2
12720006-2 ✓ 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,RECTANGULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1019 OR STEEL COMP 1060 OVERALL, nut_style: PLAIN, RECTANGULAR, nut_width: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN, nut_height: 0.312 INCHES NOMINAL IN, nut_length: 1.078 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN, thread_class: 2B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-902-8185, 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
12720006-2
NSN: 5310-00-902-8185
FSC: 5310
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 1019 OR STEEL COMP 1060 OVERALL
nut_stylePLAIN, RECTANGULAR
nut_width0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
nut_height0.312 INCHES NOMINAL IN
nut_length1.078 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresFURNISHED W/SPRING
thread_directionRIGHT-HAND
surface_treatmentZINC OVERALL
nominal_thread_size0.312 INCHES IN
thread_quantity_per_inch18
NSN5310-00-902-8185
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12720006-2 · 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
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 18
•
MATERIAL: STEEL COMP 1019 OR STEEL COMP 1060 OVERALL
•
SURFACE TREATMENT: ZINC OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NUT WIDTH: 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH18
SPECIAL FEATURESFURNISHED W/SPRING
MATERIALSTEEL COMP 1019 OR STEEL COMP 1060 OVERALL
SURFACE TREATMENTZINC OVERALL
THREAD DIRECTIONRIGHT-HAND
NUT WIDTH0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
NUT HEIGHT0.312 INCHES NOMINAL IN
NUT STYLEPLAIN, RECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
N106PC145Interchangeable
interchangeable cross-reference
interchangeable
N612PC128Interchangeable
interchangeable cross-reference
interchangeable
N300PC145Interchangeable
interchangeable cross-reference
interchangeable
A1007Interchangeable
interchangeable cross-reference
interchangeable
GDB 315MAInterchangeable
interchangeable cross-reference
interchangeable
217.315Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12720006-2?
12720006-2 is a NUT,PLAIN,RECTANGULAR.
What parts can replace 12720006-2?
There are 16 known substitutes for 12720006-2: N106PC145, N612PC128, N300PC145 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12720006-2?
12720006-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-902-8185. 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