PartsTable
Technical Data Sheet
1877143 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include taper: 0.250 PER FOOT IN INCHES, material: STEEL OVERALL, body_width: 0.293 INCHES NOMINAL IN, body_height: 0.158 INCHES NOMINAL IN, body_length: 1.258 INCHES NOMINAL IN, taper_length: 0.750 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 5315-00-123-7921, 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
1877143
NSN: 5315-00-123-7921
FSC: 5315
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
taper0.250 PER FOOT IN INCHES
materialSTEEL OVERALL
body_width0.293 INCHES NOMINAL IN
body_height0.158 INCHES NOMINAL IN
body_length1.258 INCHES NOMINAL IN
taper_length0.750 INCHES NOMINAL IN
thread_class3A A
thread_length0.250 INCHES NOMINAL IN
first_end_styleCHAMFERED
second_end_styleSQUARE
style_designatorTHREADED AT SMALL END
thread_directionRIGHT-HAND
NSN5315-00-123-7921
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1877143 · 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
MATERIAL: STEEL OVERALL
SURFACE TREATMENT: CADMIUM OVERALL
TAPER MINOR DIAMETER: 0.1320 INCHES MINIMUM AND 0.1380 INCHES MAXIMUM IN
FIRST END TAPER ANGLE: 45.0 DEGREES NOMINAL
FIRST END LOCATION: CHAMFERED END
NOMINAL THREAD SIZE: 0.138 INCHES IN
TAPER: 0.250 PER FOOT IN INCHES
SECOND END RELATIONSHIP WITH FIRST END: NOT IDENTICAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
TAPER MINOR DIAMETER0.1320 INCHES MINIMUM AND 0.1380 INCHES MAXIMUM IN
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
FIRST END LOCATIONCHAMFERED END
NOMINAL THREAD SIZE0.138 INCHES IN
TAPER0.250 PER FOOT IN INCHES
SECOND END RELATIONSHIP WITH FIRST ENDNOT IDENTICAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD CLASS3A A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
PAL-018Interchangeable
interchangeable cross-reference
interchangeable
PAL20L10MJS/883BInterchangeable
interchangeable cross-reference
interchangeable
PAL20L10MJS883BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1877143?
1877143 is a MICROCIRCUIT,DIGITAL.
What parts can replace 1877143?
There are 3 known substitutes for 1877143: PAL-018, PAL20L10MJS/883B, PAL20L10MJS883B. Substitute compatibility should be verified for your specific system.
What is the NSN for 1877143?
1877143 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-123-7921. This indicates validated use in U.S. government and defense supply chains.
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