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PartsTable / COMPONENT / D301080 FIND NO 55
D301080 FIND NO 55 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, hole_diameter: 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN, outside_diameter: 0.869 INCHES NOMINAL IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.125 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 5310-01-422-4476, 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
D301080 FIND NO 55
NSN: 5310-01-422-4476
FSC: 5310
CAGE: 3X894 — CONTROL FLOW, INC. DBA CONTROL FLOW INC (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
hole_diameter0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
outside_diameter0.869 INCHES NOMINAL IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentPASSIVATE OVERALL
material_thickness0.125 INCHES NOMINAL IN
departure_from_cited_documentAS MODIFIED BY MATERIAL.
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-422-4476
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: D301080 FIND NO 55 · 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: STEEL COMP 316 OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
HOLE DIAMETER: 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.869 INCHES NOMINAL IN
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY MATERIAL.
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 316 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
HOLE DIAMETER0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OUTSIDE DIAMETER0.869 INCHES NOMINAL IN
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL.
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MS35338-86Interchangeable
interchangeable cross-reference
interchangeable
MS35338-143Interchangeable
interchangeable cross-reference
interchangeable
004-003005-024Interchangeable
interchangeable cross-reference
interchangeable
800-2100Interchangeable
interchangeable cross-reference
interchangeable
C0718107200Interchangeable
interchangeable cross-reference
interchangeable
C0800211000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D301080 FIND NO 55?
D301080 FIND NO 55 is a WASHER,LOCK.
What parts can replace D301080 FIND NO 55?
There are 15 known substitutes for D301080 FIND NO 55: MS35338-86, MS35338-143, 004-003005-024 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D301080 FIND NO 55?
D301080 FIND NO 55 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-422-4476. 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