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PartsTable / COMPONENT / B3/A4/DIN127
B3/A4/DIN127 ✓ 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 B3/A4/DIN127 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-394-4468, 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
B3/A4/DIN127
NSN: 5310-01-394-4468
FSC: 5310
CAGE: C1591 — TIGGES GMBH UND CO.KG (DEU)
SPECIFICATIONS
Part NumberB3/A4/DIN127
NSN5310-01-394-4468
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B3/A4/DIN127 · 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 THICKNESS: 0.6 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL COMP 316 OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HOLE DIAMETER: 3.1 MILLIMETERS NOMINAL MM
•
OUTSIDE DIAMETER: 6.3 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.6 MILLIMETERS NOMINAL MM
MATERIALSTEEL COMP 316 OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER3.1 MILLIMETERS NOMINAL MM
OUTSIDE DIAMETER6.3 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
3939Interchangeable
interchangeable cross-reference
interchangeable
515272-4Interchangeable
interchangeable cross-reference
interchangeable
8660Interchangeable
interchangeable cross-reference
interchangeable
201146-2Interchangeable
interchangeable cross-reference
interchangeable
201146-2AND328664AND201142-2Interchangeable
interchangeable cross-reference
interchangeable
10123540-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3/A4/DIN127?
B3/A4/DIN127 is a B3/A4/DIN127.
What parts can replace B3/A4/DIN127?
There are 11 known substitutes for B3/A4/DIN127: 3939, 515272-4, 8660 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B3/A4/DIN127?
B3/A4/DIN127 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-394-4468. 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