PartsTable
Technical Data Sheet
5143813 ✓ 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,SLOTTED,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: SLOTTED, HEXAGON, nut_height: 0.625 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNEF, thread_direction: RIGHT-HAND, countersink_angle: 90.0 DEGREES NOMINAL NUT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-492-9631, 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
5143813
NSN: 5310-00-492-9631
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1211 OR STEEL COMP 4032 OR STEEL COMP 1213 OR STEEL COMP 1109 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.625 INCHES NOMINAL IN
thread_class3B
thread_seriesUNEF
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES NOMINAL NUT
width_across_flats2.125 INCHES NOMINAL IN
nominal_thread_size1.250 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch18
material_document_and_classificationAISI ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 6TH MATERIAL RESPONSE OVERALL
NSN5310-00-492-9631
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5143813 · 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
NUT STYLE: SLOTTED, HEXAGON
NOMINAL THREAD SIZE: 1.250 INCHES IN
THREAD SERIES: UNEF
THREAD QUANTITY PER INCH: 18
BEARING SURFACE TYPE: CHAMFERED
COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL NUT
THREAD CLASS: 3B
MATERIAL: STEEL COMP 1211 OR STEEL COMP 4032 OR STEEL COMP 1213 OR STEEL COMP 1109 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLESLOTTED, HEXAGON
NOMINAL THREAD SIZE1.250 INCHES IN
THREAD SERIESUNEF
THREAD QUANTITY PER INCH18
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE90.0 DEGREES NOMINAL NUT
THREAD CLASS3B
MATERIALSTEEL COMP 1211 OR STEEL COMP 4032 OR STEEL COMP 1213 OR STEEL COMP 1109 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1120 OVERALL
NUT HEIGHT0.625 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 2ND MATERIAL RESPONSE OR QQ-S-637 FED SPEC 4TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 5TH MATERIAL RESPONSE OR QQ-S-637 FED SPEC 6TH MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
162-78Interchangeable
interchangeable cross-reference
interchangeable
P107Interchangeable
interchangeable cross-reference
interchangeable
40540Interchangeable
interchangeable cross-reference
interchangeable
360-506Interchangeable
interchangeable cross-reference
interchangeable
1-1561-0750Interchangeable
interchangeable cross-reference
interchangeable
145930Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5143813?
5143813 is a NUT,PLAIN,SLOTTED,HEXAGON.
What parts can replace 5143813?
There are 17 known substitutes for 5143813: 162-78, P107, 40540 and 14 more. Substitute compatibility should be verified for your specific system.
Is 5143813 still available?
5143813 is currently cancelled.
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