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Technical Data Sheet
PartsTable / COMPONENT / 61078-3
61078-3 ✓ 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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 AND ALUMINUM ALLOY 356.0 BODY, special_features: 0/A LG 5.50 IN.0/A LG 5.50 IN. IN, style_designator: STRAIGHT THRUSTRAIGHT THRU, surface_treatment: ANODIZE AND ANODIZE AND PRIMER AND PRIMER AND LACQUERLACQUER, valve_operation_method: MANUALMANUAL, end_item_identification: ACFT,TYPE F16A-DACFT,TYPE F16A-D.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-271-3803, 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
61078-3
NSN: 5315-00-271-3803
FSC: 5315
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 AND ALUMINUM ALLOY 356.0 BODY
special_features0/A LG 5.50 IN.0/A LG 5.50 IN. IN
style_designatorSTRAIGHT THRUSTRAIGHT THRU
surface_treatmentANODIZE AND ANODIZE AND PRIMER AND PRIMER AND LACQUERLACQUER
valve_operation_methodMANUALMANUAL
end_item_identificationACFT,TYPE F16A-DACFT,TYPE F16A-D
media_for_which_designedFUEL/OIL, HYDROCARBON SINGLE RESPONSEFUEL/OIL, HYDROCARBON SINGLE RESPONSE
material_document_and_classificationQQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LININGQQ-A-200/8 FED SPEC 2ND MATERIAL RESPONSE BODY LINING
NSN5315-00-271-3803
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 61078-3 · 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
•
FIRST END STYLE: SQUARE
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: STEEL OVERALL
•
PIN OVERALL DIAMETER: 0.3130 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: N 46-S-40D,CL C-6 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
PIN OVERALL LENGTH: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLESQUARE
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALSTEEL OVERALL
PIN OVERALL DIAMETER0.3130 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONN 46-S-40D,CL C-6 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL LENGTH0.625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
50409-1Interchangeable
interchangeable cross-reference
interchangeable
18-1400Interchangeable
interchangeable cross-reference
interchangeable
18-1400-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 61078-3?
61078-3 is a BEARING,BALL,ANNULAR.
What parts can replace 61078-3?
There are 3 known substitutes for 61078-3: 50409-1, 18-1400, 18-1400-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 61078-3?
61078-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-271-3803. 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