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PartsTable / MRO / 131485
131485 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 CASE ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: CAP, head_style: HEXAGON, nut_height: 0.531 INCHES NOMINAL IN, design_type: SPUR ALL GEARS, head_height: 0.312 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 5310-00-013-1485, 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
MRO→ MRO_GENERAL→ 131485
NSN: 5310-00-013-1485
FSC: 5310
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleCAP
head_styleHEXAGON
nut_height0.531 INCHES NOMINAL IN
design_typeSPUR ALL GEARS
head_height0.312 INCHES NOMINAL IN
constructionASSEMBLED
thread_class3A A
thread_length1.250 INCHES MINIMUM IN
thread_seriesUNF
fastener_length2.688 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL
NSN5310-00-013-1485
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 131485 · 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 HEIGHT: 0.531 INCHES NOMINAL IN
•
NUT STYLE: CAP
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD QUANTITY PER INCH: 24
•
MATERIAL: STEEL OVERALL
•
WIDTH ACROSS FLATS: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.531 INCHES NOMINAL IN
NUT STYLECAP
THREAD SERIESUNF
NOMINAL THREAD SIZE0.312 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH24
MATERIALSTEEL OVERALL
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HEIGHT RQMT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
131402Interchangeable
interchangeable cross-reference
interchangeable
MILB857TYPECInterchangeable
interchangeable cross-reference
interchangeable
AA55629-3Interchangeable
interchangeable cross-reference
interchangeable
131482Interchangeable
interchangeable cross-reference
interchangeable
131500Interchangeable
interchangeable cross-reference
interchangeable
131501Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 131485?
131485 is a CASE ASSEMBLY. It is classified as a MRO (MRO_GENERAL).
What parts can replace 131485?
There are 11 known substitutes for 131485: 131402, MILB857TYPEC, AA55629-3 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 131485?
131485 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-013-1485. 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