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Technical Data Sheet
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131-1351 — Technical Data Sheet

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— · 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 BODY WIDTH: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, BODY HEIGHT: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, BODY LENGTH: 0.840 INCHES MAXIMUM IN, OVERALL HEIGHT: 0.400 INCHES MAXIMUM IN, OVERALL LENGTH: 0.840 INCHES MAXIMUM IN, SPECIAL FEATURES: ITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER COLUMBUS PRODUCTION STANDARD NO. LO4404.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-019-2156, 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
131-1351
NSN: 5310-01-019-2156
FSC: 5310
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
BODY WIDTH0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
BODY HEIGHT0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
BODY LENGTH0.840 INCHES MAXIMUM IN
OVERALL HEIGHT0.400 INCHES MAXIMUM IN
OVERALL LENGTH0.840 INCHES MAXIMUM IN
SPECIAL FEATURESITEM MUST COMPLY WITH REQUIREMENTS OF DEFENSE SUPPLY CENTER COLUMBUS PRODUCTION STANDARD NO. LO4404
FEATURES PROVIDEDHERMETICALLY SEALED AND BURN IN AND W/ENABLE AND W/CLEAR
OUTPUT LOGIC FORMCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
INCLOSURE MATERIALCERAMIC
STORAGE TEMP RANGE-65.0 TO 150.0 CELSIUS DEGC
TEST DATA DOCUMENT96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
OPERATING TEMP RANGE-55.0 TO 125.0 CELSIUS DEGC
NSN5310-01-019-2156
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 131-1351 · 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: HEXAGON
•
THREAD QUANTITY PER INCH: 20
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
WASHER THICKNESS: 0.075 INCHES NOMINAL IN
•
THREAD CLASS: 3B
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH20
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.250 INCHES IN
WASHER THICKNESS0.075 INCHES NOMINAL IN
THREAD CLASS3B
OVERALL HEIGHT0.230 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
MATERIALSTEEL OVERALL
WIDTH ACROSS FLATS0.432 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
14966Interchangeable
interchangeable cross-reference
interchangeable
X3232Interchangeable
interchangeable cross-reference
interchangeable
NAS1496-06Interchangeable
interchangeable cross-reference
interchangeable
ALSFT6-6Interchangeable
interchangeable cross-reference
interchangeable
NAS1496-6Interchangeable
interchangeable cross-reference
interchangeable
861131Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 131-1351?
131-1351 is a MICROCIRCUIT,DIGITAL.
What parts can replace 131-1351?
There are 17 known substitutes for 131-1351: 14966, X3232, NAS1496-06 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 131-1351?
131-1351 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-019-2156. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026