PartsTable
Technical Data Sheet
SL7940-1-5 ✓ 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,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL, nut_style: HEXAGON, nut_height: 0.359 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-189-8471, 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
SL7940-1-5
NSN: 5310-00-189-8471
FSC: 5310
CAGE: 93232 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DBA CURTISS WRIGHT ENGINEERED PUMP DIVISION USE CAGE CODE 0UBG9 FOR CATALOGING (USA)
SPECIFICATIONS
materialCOPPER ALLOY 462 OR COPPER ALLOY 464 OR COPPER ALLOY 482 OR COPPER ALLOY 485 OVERALL
nut_styleHEXAGON
nut_height0.359 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
width_across_flats0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
nominal_thread_size0.625 INCHES IN
bearing_surface_typeCHAMFERED OR WASHER FACED
thread_quantity_per_inch11
nondefinitive_spec/std_data4 TYPE AND A OR B STYLE
material_document_and_classificationQQ-B-637 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-189-8471
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SL7940-1-5 · 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 HEIGHT: 0.359 INCHES NOMINAL IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE: 0.625 INCHES IN
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH: 11
THREAD CLASS: 3B
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT0.359 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.625 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH11
THREAD CLASS3B
NUT STYLEHEXAGON
NONDEFINITIVE SPEC/STD DATA4 TYPE AND A OR B STYLE
WIDTH ACROSS FLATS0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MILB857TYPE4STYLEA0RBInterchangeable
interchangeable cross-reference
interchangeable
43N3934-10Interchangeable
interchangeable cross-reference
interchangeable
81223S41-991ALT1PC12Interchangeable
interchangeable cross-reference
interchangeable
81223S41-984PC12Interchangeable
interchangeable cross-reference
interchangeable
BB55S61-01112PC12Interchangeable
interchangeable cross-reference
interchangeable
H3129120PC132Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SL7940-1-5?
SL7940-1-5 is a NUT,PLAIN,HEXAGON.
What parts can replace SL7940-1-5?
There are 11 known substitutes for SL7940-1-5: MILB857TYPE4STYLEA0RB, 43N3934-10, 81223S41-991ALT1PC12 and 8 more. Substitute compatibility should be verified for your specific system.
Is SL7940-1-5 still available?
SL7940-1-5 is currently cancelled.
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