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520741 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

520741: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, nut_style: ROUND, nut_diameter: 2.040 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN, thread_class: 2B, nut_thickness: 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-579-4963, 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
520741
NSN: 5310-00-579-4963
FSC: 5310 — Nuts and Washers
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
nut_styleROUND
nut_diameter2.040 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
thread_class2B
nut_thickness0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
thread_seriesUN
hardness_rating30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
drive_point_depth0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
drive_point_width0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
nominal_thread_size1.938 INCHES IN
NSN5310-00-579-4963
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 520741 · 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
•
THREAD SERIES: UN
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.938 INCHES IN
•
NUT DIAMETER: 2.040 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
•
DRIVE POINT DEPTH: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.180 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.938 INCHES IN
NUT DIAMETER2.040 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
NUT THICKNESS0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 520741?
520741 is a NUT,PLAIN,ROUND.
What is the NSN for 520741?
520741 is cataloged in the U.S. Government catalog under NSN 5310-00-579-4963. This indicates validated use in U.S. government and defense supply chains.
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