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PartsTable / COMPONENT / N0400P00003
N0400P00003 ✓ 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 material: STEEL OVERALL, thickness: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN, hole_diameter: 0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN, overall_diameter: 0.181 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-990-5514, 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
N0400P00003
NSN: 5310-00-990-5514
FSC: 5310
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
hole_diameter0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
overall_diameter0.181 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-990-5514
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: N0400P00003 · 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
•
CENTER HOLE SHAPE STYLE: ROUND
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.181 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
•
THICKNESS: 0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
OVERALL DIAMETER0.181 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
THICKNESS0.019 INCHES MINIMUM AND 0.031 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
ET50X103Interchangeable
interchangeable cross-reference
interchangeable
62-2-1-103Interchangeable
interchangeable cross-reference
interchangeable
RS0877731Interchangeable
interchangeable cross-reference
interchangeable
FMX1A7Interchangeable
interchangeable cross-reference
interchangeable
Y72Interchangeable
interchangeable cross-reference
interchangeable
5330-158000-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N0400P00003?
N0400P00003 is a WASHER,FLAT.
What parts can replace N0400P00003?
There are 21 known substitutes for N0400P00003: ET50X103, 62-2-1-103, RS0877731 and 18 more. Substitute compatibility should be verified for your specific system.
Is N0400P00003 still available?
N0400P00003 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026