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Technical Data Sheet
PartsTable / COMPONENT / CL-7-FW
CL-7-FW ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include color: BLACK OVERALL, material: STEEL OVERALL, thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 0.279 INCHES NOMINAL IN, overall_diameter: 0.625 INCHES NOMINAL IN, features_provided: CASEHARDENED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-017-6530, 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-FW
NSN: 5310-01-017-6530
FSC: 5310
CAGE: 99862 — CARR LANE MANUFACTURING CO (USA)
SPECIFICATIONS
colorBLACK OVERALL
materialSTEEL OVERALL
thickness0.125 INCHES NOMINAL IN
hole_diameter0.279 INCHES NOMINAL IN
overall_diameter0.625 INCHES NOMINAL IN
features_providedCASEHARDENED
surface_treatmentOXIDE FILM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification5310-01-017-6530
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-017-6530
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CL-7-FW · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
COLOR: BLACK OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: OXIDE FILM OVERALL
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL OVERALL
COLORBLACK OVERALL
FEATURES PROVIDEDCASEHARDENED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
OVERALL DIAMETER0.625 INCHES NOMINAL IN
END ITEM IDENTIFICATION5310-01-017-6530
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
XR1902SNInterchangeable
interchangeable cross-reference
interchangeable
MS35036-153Interchangeable
interchangeable cross-reference
interchangeable
5940001434774Interchangeable
interchangeable cross-reference
interchangeable
317454Interchangeable
interchangeable cross-reference
interchangeable
31902Interchangeable
interchangeable cross-reference
interchangeable
9593Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CL-7-FW?
CL-7-FW is a WASHER,FLAT.
What parts can replace CL-7-FW?
There are 9 known substitutes for CL-7-FW: XR1902SN, MS35036-153, 5940001434774 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CL-7-FW?
CL-7-FW is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-017-6530. 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