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PartsTable / COMPONENT / 1787815PC6
1787815PC6 ✓ 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 1118 OVERALL, nut_style: HEXAGON, nut_height: 0.406 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 5310-00-676-8098, 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
1787815PC6
NSN: 5310-00-676-8098
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1118 OVERALL
nut_styleHEXAGON
nut_height0.406 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE ZINC OVERALL
width_across_flats1.375 INCHES NOMINAL IN
nominal_thread_size1.125 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch12
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-676-8098
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1787815PC6 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PHOSPHATE ZINC OVERALL
•
MATERIAL: STEEL COMP 1118 OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 1.125 INCHES IN
•
THREAD QUANTITY PER INCH: 12
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
MATERIALSTEEL COMP 1118 OVERALL
THREAD DIRECTIONRIGHT-HAND
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD SERIESUNF
NOMINAL THREAD SIZE1.125 INCHES IN
THREAD QUANTITY PER INCH12
NUT HEIGHT0.406 INCHES NOMINAL IN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
5191195Interchangeable
interchangeable cross-reference
interchangeable
20812-1Interchangeable
interchangeable cross-reference
interchangeable
46589DInterchangeable
interchangeable cross-reference
interchangeable
20812Interchangeable
interchangeable cross-reference
interchangeable
MS36068-2Interchangeable
interchangeable cross-reference
interchangeable
NNN-F-289Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1787815PC6?
1787815PC6 is a NUT,PLAIN,HEXAGON.
What parts can replace 1787815PC6?
There are 13 known substitutes for 1787815PC6: 5191195, 20812-1, 46589D and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1787815PC6?
1787815PC6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-676-8098. 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