PartsTable
Technical Data Sheet
2493790 ✓ 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,SLEEVE is a the manufacturer industrial component. Key specifications include nut_length: 0.340 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.219 INCHES NOMINAL OVERALL IN, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: DYED BLACK, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-015-3831, 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
2493790
NSN: 5310-00-015-3831
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
nut_length0.340 INCHES NOMINAL IN
thread_class2B
thread_length0.219 INCHES NOMINAL OVERALL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresDYED BLACK
thread_directionRIGHT-HAND
nominal_thread_size0.138 INCHES IN
cross-sectional_shapeROUND NUT
thread_quantity_per_inch30
material_document_and_classificationQQ-A-268,TEMPER T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
surface_treatment_document_and_classificationMIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-015-3831
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2493790 · 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: UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTION: RIGHT-HAND
THREAD CLASS: 2B
NUT LENGTH: 0.340 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE: ROUND NUT
THREAD LENGTH: 0.219 INCHES NOMINAL OVERALL IN
NOMINAL THREAD SIZE: 0.138 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
NUT LENGTH0.340 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEROUND NUT
THREAD LENGTH0.219 INCHES NOMINAL OVERALL IN
NOMINAL THREAD SIZE0.138 INCHES IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
THREAD QUANTITY PER INCH30
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
208Interchangeable
interchangeable cross-reference
interchangeable
13340Interchangeable
interchangeable cross-reference
interchangeable
503-S 40Interchangeable
interchangeable cross-reference
interchangeable
NUTS N' BOLTS 422Interchangeable
interchangeable cross-reference
interchangeable
24131Interchangeable
interchangeable cross-reference
interchangeable
8030PL0665191Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2493790?
2493790 is a NUT,SLEEVE.
What parts can replace 2493790?
There are 14 known substitutes for 2493790: 208, 13340, 503-S 40 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2493790?
2493790 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-015-3831. This indicates validated use in U.S. government and defense supply chains.
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