PartsTable
Technical Data Sheet
81MJY1 ✓ 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 PIN,HOLLOW is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, first_end_style: CHAMFERED W/THRU HOLE, inside_diameter: 0.540 INCHES NOMINAL IN, features_provided: CASEHARDENED, pin_overall_length: 5.138 INCHES NOMINAL IN, pin_overall_diameter: 1.2500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-311-8237, 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
81MJY1
NSN: 5315-00-311-8237
FSC: 5315
CAGE: 05415 — LINDE LIFT TRUCK CORP. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
first_end_styleCHAMFERED W/THRU HOLE
inside_diameter0.540 INCHES NOMINAL IN
features_providedCASEHARDENED
pin_overall_length5.138 INCHES NOMINAL IN
pin_overall_diameter1.2500 INCHES NOMINAL IN
first_end_taper_angle45.0 DEGREES NOMINAL
first_end_taper_length0.050 INCHES NOMINAL IN
second_end_relationship_with_first_endIDENTICAL
NSN5315-00-311-8237
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 81MJY1 · 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
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
PIN OVERALL LENGTH: 5.138 INCHES NOMINAL IN
FIRST END TAPER LENGTH: 0.050 INCHES NOMINAL IN
INSIDE DIAMETER: 0.540 INCHES NOMINAL IN
FEATURES PROVIDED: CASEHARDENED
FIRST END STYLE: CHAMFERED W/THRU HOLE
TECHNICAL CHARACTERISTICS (FLIS)
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
SPECIAL FEATURESID CHAMFERED ON BOTH ENDS SAME AS OD,0.125 IN. W BY 0.090 IN. DEEP GROOVE ACROSS OTHER END EXCEPT 0.050 IN. DEEP,0.125 IN. DIA OIL HOLE CENTERED THRU ONE WALL OF PIN,SHALLOW GROOVE CENTERED AROUND OD OF PIN,0.800 IN. W GROOVE IN
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
PIN OVERALL LENGTH5.138 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.050 INCHES NOMINAL IN
INSIDE DIAMETER0.540 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
FIRST END STYLECHAMFERED W/THRU HOLE
MATERIALSTEEL OVERALL
PIN OVERALL DIAMETER1.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
102802Interchangeable
interchangeable cross-reference
interchangeable
736Interchangeable
interchangeable cross-reference
interchangeable
102802-501Interchangeable
interchangeable cross-reference
interchangeable
2AH969Interchangeable
interchangeable cross-reference
interchangeable
102511Interchangeable
interchangeable cross-reference
interchangeable
15535367Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81MJY1?
81MJY1 is a PIN,HOLLOW.
What parts can replace 81MJY1?
There are 7 known substitutes for 81MJY1: 102802, 736, 102802-501 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81MJY1?
81MJY1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-311-8237. This indicates validated use in U.S. government and defense supply chains.
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