PartsTable
Technical Data Sheet
186-478 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include phase: SINGLE, length: 3.000 INCHES IN, diameter: 1.125 INCHES IN, material: STEEL CORROSION RESISTING OVERALL, thickness: 0.032 INCHES NOMINAL IN, current_type: AC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-773-7624, 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
186-478
NSN: 5310-00-773-7624
FSC: 5310
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
phaseSINGLE
length3.000 INCHES IN
diameter1.125 INCHES IN
materialSTEEL CORROSION RESISTING OVERALL
quantity1
thickness0.032 INCHES NOMINAL IN
current_typeAC
hole_diameter0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
overall_height8.000 INCHES NOMINAL IN
voltage_rating115.0 VOLTS NOMINAL
stirring_magnetINCLUDED
frequency_rating50.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
NSN5310-00-773-7624
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 186-478 · 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: 0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
MATERIAL: STEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLE: ROUND
SPECIFICATION/STANDARD DATA: 80205-NAS620 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT: PASSIVATE OVERALL
OVERALL DIAMETER: 0.262 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
END ITEM IDENTIFICATIONMRAP RG-33; MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE
PERIPHERAL SHAPE STYLEROUND
SPECIFICATION/STANDARD DATA80205-NAS620 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
OVERALL DIAMETER0.262 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN
THICKNESS0.032 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
77A3613-29Interchangeable
interchangeable cross-reference
interchangeable
819066-014Interchangeable
interchangeable cross-reference
interchangeable
962350911Interchangeable
interchangeable cross-reference
interchangeable
10-29974Interchangeable
interchangeable cross-reference
interchangeable
5310PL0724727Interchangeable
interchangeable cross-reference
interchangeable
65906Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 186-478?
186-478 is a WASHER,FLAT.
What parts can replace 186-478?
There are 28 known substitutes for 186-478: 77A3613-29, 819066-014, 962350911 and 25 more. Substitute compatibility should be verified for your specific system.
Is 186-478 still available?
186-478 is currently cancelled.
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