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Technical Data Sheet
PartsTable / COMPONENT / CL-7-FN
CL-7-FN ✓ 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 material: STEEL COMP 1213 OVERALL, nut_style: HEXAGON, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 1.250 INCHES NOMINAL IN, 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 5310-00-259-1140, 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
CL-7-FN
NSN: 5310-00-259-1140
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL COMP 1213 OVERALL
nut_styleHEXAGON
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
washer_thickness0.270 INCHES NOMINAL IN
features_providedCASEHARDENED
surface_treatmentOXIDE OVERALL
width_across_flats1.625 INCHES NOMINAL IN
nominal_thread_size1.000 INCHES IN
washer_outside_diameter2.000 INCHES NOMINAL IN
NSN5310-00-259-1140
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CL-7-FN · 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 DIRECTION: RIGHT-HAND
•
WASHER THICKNESS: 0.250 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 8
•
WIDTH ACROSS FLATS: 1.625 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
WASHER OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
WASHER THICKNESS0.250 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH8
WIDTH ACROSS FLATS1.625 INCHES NOMINAL IN
NOMINAL THREAD SIZE1.000 INCHES IN
WASHER OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
SURFACE TREATMENTOXIDE OVERALL
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
70208Interchangeable
interchangeable cross-reference
interchangeable
A1KC08GInterchangeable
interchangeable cross-reference
interchangeable
2580-0002Interchangeable
interchangeable cross-reference
interchangeable
MS35207-261Interchangeable
interchangeable cross-reference
interchangeable
2216312Interchangeable
interchangeable cross-reference
interchangeable
AN520-10-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CL-7-FN?
CL-7-FN is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What parts can replace CL-7-FN?
There are 12 known substitutes for CL-7-FN: 70208, A1KC08G, 2580-0002 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CL-7-FN?
CL-7-FN is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-259-1140. 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