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PartsTable / COMPONENT / 81371
81371 ✓ Verified by PartsTable
schleich · 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

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: STEEL COMP 1020 OVERALL, nut_style: EXTERNAL TOOTH, nut_height: 0.109 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.141 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-063-7360, 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
81371
NSN: 5310-00-063-7360
FSC: 5310
CAGE: 1Z473 — PAKON INC DBA IMPAK DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OVERALL
nut_styleEXTERNAL TOOTH
nut_height0.109 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.141 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCHROMATE ZINC OVERALL
width_across_flats0.312 INCHES NOMINAL IN
nominal_thread_size0.138 INCHES IN
washer_outside_diameter0.344 INCHES NOMINAL IN
thread_quantity_per_inch32
NSN5310-00-063-7360
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 81371 · schleich ⚠ 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: EXTERNAL TOOTH
•
WASHER OUTSIDE DIAMETER: 0.344 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: CHROMATE ZINC OVERALL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.141 INCHES NOMINAL IN
NUT STYLEEXTERNAL TOOTH
WASHER OUTSIDE DIAMETER0.344 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
NOMINAL THREAD SIZE0.138 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCHROMATE ZINC OVERALL
MATERIALSTEEL COMP 1020 OVERALL
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
62A100C5001Interchangeable
interchangeable cross-reference
interchangeable
9225Interchangeable
interchangeable cross-reference
interchangeable
5950PL0809210Interchangeable
interchangeable cross-reference
interchangeable
10183032-25Interchangeable
interchangeable cross-reference
interchangeable
6061Interchangeable
interchangeable cross-reference
interchangeable
IN59Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81371?
81371 is a CAPACITOR,FIXED,MICA DIELECTRIC manufactured by schleich.
What parts can replace 81371?
There are 22 known substitutes for 81371: 62A100C5001, 9225, 5950PL0809210 and 19 more. Substitute compatibility should be verified for your specific system.
Is 81371 still available?
81371 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026