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SK144246 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SK144246: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL ALLOY OVERALL, nut_style: ROUND, nut_diameter: 2.375 INCHES NOMINAL IN, thread_class: 3B, nut_thickness: 1.250 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-677-0076, 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
SK144246
NSN: 5310-00-677-0076
FSC: 5310 — Nuts and Washers
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialSTEEL ALLOY OVERALL
nut_styleROUND
nut_diameter2.375 INCHES NOMINAL IN
thread_class3B
nut_thickness1.250 INCHES NOMINAL IN
thread_seriesUN
thread_directionLEFT-HAND
drive_point_depth0.281 INCHES NOMINAL IN
nominal_thread_size1.750 INCHES IN
drive_point_diameter0.250 INCHES NOMINAL IN
drive_point_quantity3
hole_type_and_quantity3 TAPPED
NSN5310-00-677-0076
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SK144246 · 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
•
HOLE THREAD QUANTITY PER INCH: 20
•
THREAD SERIES: UN
•
HOLE CONFIGURATION STYLE: CONFIGURATION F
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,CL 416,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 1.750 INCHES IN
•
NUT DIAMETER: 2.375 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.281 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOLE THREAD QUANTITY PER INCH20
THREAD SERIESUN
HOLE CONFIGURATION STYLECONFIGURATION F
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CL 416,COND H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE1.750 INCHES IN
NUT DIAMETER2.375 INCHES NOMINAL IN
DRIVE POINT DEPTH0.281 INCHES NOMINAL IN
NUT THICKNESS1.250 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
HM-40842Reference document
Same NSN cross-reference
Reference document — Secondary reference
40842Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
14990PReference document
Same NSN cross-reference
Reference document — Design control — primary reference
322884Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 SK144246?
SK144246 is a NUT,PLAIN,ROUND.
What parts can replace SK144246?
There are 4 known substitutes for SK144246: HM-40842, 40842, 14990P and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SK144246?
SK144246 is cataloged in the U.S. Government catalog under NSN 5310-00-677-0076. 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.