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90621A035 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90621A035: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 AND STEEL COMP 1026 OVERALL, hardness_rating: 32.0 ROCKWELL C MAXIMUM, thread_direction: RIGHT-HAND, nominal_thread_size: 0.625 INCHES IN, supplementary_features: CONFORMS TO ANS/ASME B18.6.3, end_item_identification: 3805-01-538-6852, SCRAPER,TRACTOR. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-558-8833, 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
90621A035
NSN: 5310-01-558-8833
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 AND STEEL COMP 1026 OVERALL
hardness_rating32.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
nominal_thread_size0.625 INCHES IN
supplementary_featuresCONFORMS TO ANS/ASME B18.6.3
end_item_identification3805-01-538-6852, SCRAPER,TRACTOR
thread_quantity_per_inch11
part_name_assigned_by_controlling_agencyHEX THICK STEEL-INSERT LOCKNUTS
NSN5310-01-558-8833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90621A035 · 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
•
SUPPLEMENTARY FEATURES: CONFORMS TO ANS/ASME B18.6.3
•
HARDNESS RATING: 32.0 ROCKWELL C MAXIMUM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD QUANTITY PER INCH: 11
•
MATERIAL: STEEL COMP 1008 AND STEEL COMP 1026 OVERALL
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESCONFORMS TO ANS/ASME B18.6.3
HARDNESS RATING32.0 ROCKWELL C MAXIMUM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.625 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYHEX THICK STEEL-INSERT LOCKNUTS
END ITEM IDENTIFICATION3805-01-538-6852, SCRAPER,TRACTOR
THREAD QUANTITY PER INCH11
MATERIALSTEEL COMP 1008 AND STEEL COMP 1026 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

No substitute or cross-reference records for this part.

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 90621A035?
90621A035 is a NUT,SELF-LOCKING,HEXAGON.
What is the NSN for 90621A035?
90621A035 is cataloged in the U.S. Government catalog under NSN 5310-01-558-8833. 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.