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PartsTable / COMPONENT / 445-4510939M21
445-4510939M21 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-763-8901, 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
445-4510939M21
NSN: 5310-00-763-8901
FSC: 5310
CAGE: 51563 — ROHR, INC. DBA ROHR INDUSTRIES INC DIV ROHR INC., A PART OF COLLINS AEROSPACE (USA)
SPECIFICATIONS
Part Number445-4510939M21
NSN5310-00-763-8901
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 445-4510939M21 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
1913Interchangeable
interchangeable cross-reference
interchangeable
S6835Interchangeable
interchangeable cross-reference
interchangeable
323-94Interchangeable
interchangeable cross-reference
interchangeable
10163081Interchangeable
interchangeable cross-reference
interchangeable
69833Interchangeable
interchangeable cross-reference
interchangeable
011-1711Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 445-4510939M21?
445-4510939M21 is a NUT,PLAIN,HEXAGON.
What parts can replace 445-4510939M21?
There are 25 known substitutes for 445-4510939M21: 1913, S6835, 323-94 and 22 more. Substitute compatibility should be verified for your specific system.
Is 445-4510939M21 still available?
445-4510939M21 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026