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Technical Data Sheet
PartsTable / COMPONENT / 1XD2
1XD2 ✓ 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

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.270 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, width_across_flats: 0.500 INCHES NOMINAL IN, end_item_identification: 6115-01-591-1161;GENERATOR,HEATING AND AIR CONDITIONER, washer_outside_diameter: 0.670 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-651-8418, 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
1XD2
NSN: 5310-01-651-8418
FSC: 5310
CAGE: 0KMA3 — ADAMS NUT AND BOLT CO INC (USA)
SPECIFICATIONS
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.270 INCHES NOMINAL IN
thread_directionRIGHT-HAND
width_across_flats0.500 INCHES NOMINAL IN
end_item_identification6115-01-591-1161;GENERATOR,HEATING AND AIR CONDITIONER
washer_outside_diameter0.670 INCHES NOMINAL IN
thread_quantity_per_inch18
part_name_assigned_by_controlling_agencyNUT,SFLG
NSN5310-01-651-8418
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1XD2 · 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
•
WASHER OUTSIDE DIAMETER: 0.670 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.270 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER0.670 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT,SFLG
THREAD QUANTITY PER INCH18
END ITEM IDENTIFICATION6115-01-591-1161;GENERATOR,HEATING AND AIR CONDITIONER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
62067Interchangeable
interchangeable cross-reference
interchangeable
73339SEALInterchangeable
interchangeable cross-reference
interchangeable
WPP716Interchangeable
interchangeable cross-reference
interchangeable
R05900EInterchangeable
interchangeable cross-reference
interchangeable
RO5900EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1XD2?
1XD2 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace 1XD2?
There are 5 known substitutes for 1XD2: 62067, 73339SEAL, WPP716 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1XD2?
1XD2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-651-8418. 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