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PartsTable / COMPONENT / 1B8593
1B8593 ✓ 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 CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.3125 INCHES NOMINAL FIRST IN, overall_length: 1.1200 INCHES MINIMUM AND 1.1300 INCHES MAXIMUM IN, special_features: 5/32 RADIUS PARALELL TO DRILLED HOLE, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: TIN OUTSIDE DIAMETER SURFACE OF BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8031, 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
1B8593
NSN: 5310-00-274-8031
FSC: 5310
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
corner_shapeSQUARE ALL CORNERS
hole_diameter0.3125 INCHES NOMINAL FIRST IN
overall_length1.1200 INCHES MINIMUM AND 1.1300 INCHES MAXIMUM IN
special_features5/32 RADIUS PARALELL TO DRILLED HOLE
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentTIN OUTSIDE DIAMETER SURFACE OF BODY
body_inside_diameter2.1253 INCHES MINIMUM AND 2.1260 INCHES MAXIMUM IN
body_outside_diameter2.1910 INCHES MINIMUM AND 2.1920 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity1 HOLE
NSN5310-00-274-8031
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1B8593 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
YT184S61-0839PC156Interchangeable
interchangeable cross-reference
interchangeable
YT230S6100-404297PC156Interchangeable
interchangeable cross-reference
interchangeable
YP249S41-39PC156Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B8593?
1B8593 is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace 1B8593?
There are 3 known substitutes for 1B8593: YT184S61-0839PC156, YT230S6100-404297PC156, YP249S41-39PC156. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B8593?
1B8593 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8031. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026