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AEN04C438000WA6A91 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AEN04C438000WA6A91: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: MATERIAL GRADE 8. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-679-1349, 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
AEN04C438000WA6A91
NSN: 5310-01-679-1349
FSC: 5310 — Nuts and Washers
CAGE: 05047 — THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresMATERIAL GRADE 8
thread_directionRIGHT-HAND
surface_treatmentZINC AND CHROMATE OVERALL
width_across_flats0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeCHAMFERED OR FLAT OR WASHER FACED
end_item_identification2355-01-616-9288
NSN5310-01-679-1349
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AEN04C438000WA6A91 · 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: 0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
NUT HEIGHT: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.675 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.438 INCHES IN
NUT HEIGHT0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SPECIAL FEATURESMATERIAL GRADE 8
SURFACE TREATMENTZINC AND CHROMATE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, HEX
NUT STYLEHEXAGON
THREAD CLASS2B
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
B18.24Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 AEN04C438000WA6A91?
AEN04C438000WA6A91 is a NUT,PLAIN,HEXAGON.
What parts can replace AEN04C438000WA6A91?
There is 1 known substitute for AEN04C438000WA6A91: B18.24. Substitute compatibility should be verified for your specific system.
What is the NSN for AEN04C438000WA6A91?
AEN04C438000WA6A91 is cataloged in the U.S. Government catalog under NSN 5310-01-679-1349. 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.