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PartsTable / COMPONENT / SL4010-4
SL4010-4 ✓ 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,SELF-LOCKING,BARREL is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, nut_style: FLOATING SELF-LOCKING BARREL, nut_height: 0.437 INCHES NOMINAL IN, nut_length: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, nut_diameter: 0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-048-1643, 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
SL4010-4
NSN: 5310-01-048-1643
FSC: 5310
CAGE: 97393 — SPS TECHNOLOGIES LLC DBA SHUR-LOK COMPANY DIV AEROSPACE ENGINEERED PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
nut_styleFLOATING SELF-LOCKING BARREL
nut_height0.437 INCHES NOMINAL IN
nut_length0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
nut_diameter0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN
thread_class3B
barrel_height0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch28
NSN5310-01-048-1643
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SL4010-4 · 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 DIRECTION: RIGHT-HAND
•
NUT DIAMETER: 0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
LUBRICATION: DRY FILM LUBRICANT
•
NUT STYLE: FLOATING SELF-LOCKING BARREL
•
NUT LENGTH: 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.437 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 28
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT DIAMETER0.498 INCHES MINIMUM AND 0.528 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.250 INCHES IN
LUBRICATIONDRY FILM LUBRICANT
NUT STYLEFLOATING SELF-LOCKING BARREL
NUT LENGTH0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN
NUT HEIGHT0.437 INCHES NOMINAL IN
THREAD QUANTITY PER INCH28
BARREL HEIGHT0.310 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
77020-4Interchangeable
interchangeable cross-reference
interchangeable
1390-N285Interchangeable
interchangeable cross-reference
interchangeable
9352381-2Interchangeable
interchangeable cross-reference
interchangeable
10122047Interchangeable
Same NIIN cross-reference
interchangeable
ST3M441-4MInterchangeable
Same NIIN cross-reference
interchangeable
3929AS1223-4MInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SL4010-4?
SL4010-4 is a NUT,SELF-LOCKING,BARREL.
What parts can replace SL4010-4?
There are 8 known substitutes for SL4010-4: 77020-4, 1390-N285, 9352381-2 and 5 more. Substitute compatibility should be verified for your specific system.
Is SL4010-4 still available?
SL4010-4 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