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90257A011 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90257A011: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, nut_style: HEXAGON, nut_height: 0.125 INCHES NOMINAL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: CORROSION AND ACID RESISTANT; NON-MAGNETIC AND COURSE THREAD, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-334-3252, 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
90257A011
NSN: 5310-01-334-3252
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
nut_styleHEXAGON
nut_height0.125 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresCORROSION AND ACID RESISTANT; NON-MAGNETIC AND COURSE THREAD
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
thread_quantity_per_inch10-24
NSN5310-01-334-3252
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90257A011 · 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: 0.375 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NUT HEIGHT: 0.125 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 10-24
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.125 INCHES NOMINAL IN
SPECIAL FEATURESCORROSION AND ACID RESISTANT; NON-MAGNETIC AND COURSE THREAD
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH10-24
MATERIALSTEEL COMP 316 OVERALL
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 1
M1496-128109Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90257A011?
90257A011 is a NUT,PLAIN,HEXAGON.
What parts can replace 90257A011?
There is 1 known substitute for 90257A011: M1496-128109. Substitute compatibility should be verified for your specific system.
What is the NSN for 90257A011?
90257A011 is cataloged in the U.S. Government catalog under NSN 5310-01-334-3252. 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.