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PartsTable / COMPONENT / 6620270-4
6620270-4 ✓ 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 PIN,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include diameter: 0.181 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING OVERALL, head_style: FLAT CHAMFER, style_designator: STRAIGHT, surface_treatment: PASSIVATE OVERALL, under_head_length: 0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM 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 5315-01-520-4320, 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
6620270-4
NSN: 5315-01-520-4320
FSC: 5315
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
diameter0.181 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
materialSTEEL CORROSION RESISTING OVERALL
head_styleFLAT CHAMFER
style_designatorSTRAIGHT
surface_treatmentPASSIVATE OVERALL
under_head_length0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
end_item_identificationDOORSTOP,TELESCOPING
NSN5315-01-520-4320
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6620270-4 · 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
•
UNDER HEAD LENGTH: 0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
DIAMETER: 0.181 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: STRAIGHT
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS (FLIS)
UNDER HEAD LENGTH0.850 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
DIAMETER0.181 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
STYLE DESIGNATORSTRAIGHT
END ITEM IDENTIFICATIONDOORSTOP,TELESCOPING
HEAD STYLEFLAT CHAMFER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
72297Interchangeable
interchangeable cross-reference
interchangeable
50712Interchangeable
interchangeable cross-reference
interchangeable
6620270Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6620270-4?
6620270-4 is a PIN,STRAIGHT,HEADED.
What parts can replace 6620270-4?
There are 3 known substitutes for 6620270-4: 72297, 50712, 6620270. Substitute compatibility should be verified for your specific system.
What is the NSN for 6620270-4?
6620270-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-520-4320. 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