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X53NTU-3212 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

X53NTU-3212: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 1.672 INCHES NOMINAL IN, thread_class: 3B, thread_series: UN, hardness_rating: 25.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-134-0204, 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
X53NTU-3212
NSN: 5310-01-134-0204
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height1.672 INCHES NOMINAL IN
thread_class3B
thread_seriesUN
hardness_rating25.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
nominal_thread_size2.000 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch12
NSN5310-01-134-0204
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: X53NTU-3212 · 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
•
WIDTH ACROSS FLATS: 3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
•
THREAD SERIES: UN
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.000 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 1.672 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS3.025 INCHES MINIMUM AND 3.125 INCHES MAXIMUM IN
THREAD SERIESUN
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.000 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT1.672 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD QUANTITY PER INCH12
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
12412092-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S83249Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is X53NTU-3212?
X53NTU-3212 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace X53NTU-3212?
There are 2 known substitutes for X53NTU-3212: 12412092-2, S83249. Substitute compatibility should be verified for your specific system.
What is the NSN for X53NTU-3212?
X53NTU-3212 is cataloged in the U.S. Government catalog under NSN 5310-01-134-0204. 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.