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DIN127-B20-A2L — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

DIN127-B20-A2L: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 20.2 MILLIMETERS NOMINAL MM, outside_diameter: 33.6 MILLIMETERS NOMINAL MM, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC OVERALL, material_thickness: 4.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-161-5412, 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
DIN127-B20-A2L
NSN: 5310-01-161-5412
FSC: 5310 — Nuts and Washers
CAGE: D8286 — DIN DEUTSCHES INSTITUT FUR NORMUNG EV (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter20.2 MILLIMETERS NOMINAL MM
outside_diameter33.6 MILLIMETERS NOMINAL MM
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC OVERALL
material_thickness4.0 MILLIMETERS NOMINAL MM
NSN5310-01-161-5412
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DIN127-B20-A2L · 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
OUTSIDE DIAMETER: 33.6 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 4.0 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 20.2 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER33.6 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS4.0 MILLIMETERS NOMINAL MM
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER20.2 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 3
10505933Reference document
Same NSN cross-reference
Reference document — Secondary reference
127-B20Reference document
Same NSN cross-reference
Reference document — Secondary reference
3M926-5-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DIN127-B20-A2L?
DIN127-B20-A2L is a WASHER,LOCK.
What parts can replace DIN127-B20-A2L?
There are 3 known substitutes for DIN127-B20-A2L: 10505933, 127-B20, 3M926-5-17. Substitute compatibility should be verified for your specific system.
What is the NSN for DIN127-B20-A2L?
DIN127-B20-A2L is cataloged in the U.S. Government catalog under NSN 5310-01-161-5412. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.