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Technical Data Sheet
PartsTable / COMPONENT / 6-3-131
6-3-131 ✓ 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 COOLER,LUBRICATING OIL,ENGINE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, hole_diameter: 2.650 INCHES NOMINAL IN, shoulder_height: 0.375 INCHES NOMINAL IN, outside_diameter: 3.180 INCHES NOMINAL IN, special_features: INSIDE DIAMETER HAS 2-0.140 WIDE BY 0.080 DEEP,180 DEGREES APART, style_designator: SHOULDERED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-005-1797, 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
6-3-131
NSN: 5310-00-005-1797
FSC: 5310
CAGE: 02121 — GOODRICH AEROSPACE CANADA LTD (CAN)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
hole_diameter2.650 INCHES NOMINAL IN
shoulder_height0.375 INCHES NOMINAL IN
outside_diameter3.180 INCHES NOMINAL IN
special_featuresINSIDE DIAMETER HAS 2-0.140 WIDE BY 0.080 DEEP,180 DEGREES APART
style_designatorSHOULDERED
shoulder_diameter2.920 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
material_thickness0.125 INCHES NOMINAL IN
fsc_application_dataAIRCRAFT HYDRAULIC VACUUM DEICING SYSTEMS
material_document_and_classificationQQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-005-1797
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6-3-131 · 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
•
HOLE DIAMETER: 2.650 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 2.920 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2024 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OUTSIDE DIAMETER: 3.180 INCHES NOMINAL IN
•
FSC APPLICATION DATA: AIRCRAFT HYDRAULIC VACUUM DEICING SYSTEMS
•
SURFACE TREATMENT: ANODIZE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER2.650 INCHES NOMINAL IN
SHOULDER DIAMETER2.920 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OUTSIDE DIAMETER3.180 INCHES NOMINAL IN
FSC APPLICATION DATAAIRCRAFT HYDRAULIC VACUUM DEICING SYSTEMS
SURFACE TREATMENTANODIZE OVERALL
SPECIAL FEATURESINSIDE DIAMETER HAS 2-0.140 WIDE BY 0.080 DEEP,180 DEGREES APART
MATERIAL THICKNESS0.125 INCHES NOMINAL IN
SHOULDER HEIGHT0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
6-3-131Interchangeable
interchangeable cross-reference
interchangeable
1327-556188Interchangeable
interchangeable cross-reference
interchangeable
PS570200001-3Interchangeable
interchangeable cross-reference
interchangeable
2793283Interchangeable
interchangeable cross-reference
interchangeable
9454182Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6-3-131?
6-3-131 is a COOLER,LUBRICATING OIL,ENGINE.
What parts can replace 6-3-131?
There are 7 known substitutes for 6-3-131: MIL-F-2692, 6-3-131, 1327-556188 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6-3-131?
6-3-131 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-005-1797. 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