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241-5750449 — NUT,SELF-LOCKING,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

241-5750449: NUT,SELF-LOCKING,ROUND.

The NUT,SELF-LOCKING,ROUND is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: ROUND, lubrication: SOLUBLE LUBRICANT, nut_diameter: 3.620 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.650 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-190-7465, 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
241-5750449
NSN: 5310-01-190-7465
FSC: 5310 — Nuts and Washers
CAGE: 3BNF6 — CINCINNATI GEARING SYSTEMS INC (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleROUND
lubricationSOLUBLE LUBRICANT
nut_diameter3.620 INCHES NOMINAL IN
thread_class2B
nut_thickness0.650 INCHES NOMINAL IN
thread_seriesUN
hardness_rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
drive_point_depth0.190 INCHES NOMINAL IN
drive_point_width0.380 INCHES NOMINAL IN
NSN5310-01-190-7465
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 241-5750449 · 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
•
LUBRICATION: SOLUBLE LUBRICANT
•
THREAD SERIES: UN
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.380 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
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NOMINAL THREAD SIZE: 2.875 INCHES IN
•
NUT DIAMETER: 3.620 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUBRICATIONSOLUBLE LUBRICANT
THREAD SERIESUN
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.380 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.875 INCHES IN
NUT DIAMETER3.620 INCHES NOMINAL IN
DRIVE POINT DEPTH0.190 INCHES NOMINAL IN
UNDERCUT THICKNESS0.120 INCHES NOMINAL IN
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
5750449-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 241-5750449?
241-5750449 is a NUT,SELF-LOCKING,ROUND.
What parts can replace 241-5750449?
There is 1 known substitute for 241-5750449: 5750449-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 241-5750449?
241-5750449 is cataloged in the U.S. Government catalog under NSN 5310-01-190-7465. 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.