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Technical Data Sheet
PartsTable / COMPONENT / 678333
678333 ✓ 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 CHAIN,WELDED is a the manufacturer industrial component. Key specifications include diameter: 0.375 INCHES NOMINAL STOCK IN, material: STEEL OVERALL, overall_length: 200.000 FEET NOMINAL FT, style_designator: LONG LINK, surface_treatment: ZINC OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-150-3612, 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
678333
NSN: 5310-00-150-3612
FSC: 5310
CAGE: 33615 — ENJET AERO MANCHESTER LLC (USA)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL STOCK IN
materialSTEEL OVERALL
overall_length200.000 FEET NOMINAL FT
style_designatorLONG LINK
surface_treatmentZINC OVERALL
NSN5310-00-150-3612
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 678333 · 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
•
HOLE DIAMETER: 0.958 INCHES MINIMUM AND 0.978 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.220 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
•
INTERNAL KEY QUANTITY: 3
•
MATERIAL: STEEL COMP 321 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.958 INCHES MINIMUM AND 0.978 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.220 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
INTERNAL KEY QUANTITY3
MATERIALSTEEL COMP 321 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
678333Interchangeable
interchangeable cross-reference
interchangeable
21561Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 678333?
678333 is a CHAIN,WELDED.
What parts can replace 678333?
There are 2 known substitutes for 678333: 678333, 21561. Substitute compatibility should be verified for your specific system.
What is the NSN for 678333?
678333 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-150-3612. 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