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91078A043 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91078A043: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.843 INCHES NOMINAL IN, special_features: NUT: ZINC-PLATED GRADE 2 STEEL, thread_direction: RIGHT-HAND, surface_treatment: ZINC NUT. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-591-5859, 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
91078A043
NSN: 5310-01-591-5859
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL NUT
nut_styleHEXAGON
nut_height0.843 INCHES NOMINAL IN
special_featuresNUT: ZINC-PLATED GRADE 2 STEEL
thread_directionRIGHT-HAND
surface_treatmentZINC NUT
width_across_flats2.250 INCHES NOMINAL IN
nominal_thread_size1.500 INCHES IN
end_item_identification2590-01-579-4990;GEN III MINE ROLLER SYSTEM
thread_quantity_per_inch6
part_name_assigned_by_controlling_agencyNUT,PLAIN,HEXAGON
NSN5310-01-591-5859
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91078A043 · 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: 2.250 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.500 INCHES IN
•
NUT HEIGHT: 0.843 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC NUT
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.250 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.500 INCHES IN
NUT HEIGHT0.843 INCHES NOMINAL IN
SPECIAL FEATURESNUT: ZINC-PLATED GRADE 2 STEEL
SURFACE TREATMENTZINC NUT
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT,PLAIN,HEXAGON
NUT STYLEHEXAGON
END ITEM IDENTIFICATION2590-01-579-4990;GEN III MINE ROLLER SYSTEM
THREAD QUANTITY PER INCH6
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91078A043?
91078A043 is a NUT,PLAIN,HEXAGON.
What is the NSN for 91078A043?
91078A043 is cataloged in the U.S. Government catalog under NSN 5310-01-591-5859. 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.