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PartsTable / COMPONENT / 118-222 PIECE 4
118-222 PIECE 4 ✓ 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 COMP 303 OVERALL, thickness: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, hole_diameter: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, overall_diameter: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-487-4916, 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
118-222 PIECE 4
NSN: 5310-00-487-4916
FSC: 5310
CAGE: 41387 — SIEMENS INDUSTRY, INC. DBA SIEMENS ENERGY DIV PROCESS INDUSTRIES AND DRIVES (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
thickness0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
hole_diameter0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
overall_diameter0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-487-4916
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 118-222 PIECE 4 · 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
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
THICKNESS: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 303 OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OVERALL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
WP-039-1499Interchangeable
interchangeable cross-reference
interchangeable
CSI-5-20Interchangeable
interchangeable cross-reference
interchangeable
207133Interchangeable
interchangeable cross-reference
interchangeable
30-943Interchangeable
interchangeable cross-reference
interchangeable
RW-943Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 118-222 PIECE 4?
118-222 PIECE 4 is a WASHER,FLAT.
What parts can replace 118-222 PIECE 4?
There are 5 known substitutes for 118-222 PIECE 4: WP-039-1499, CSI-5-20, 207133 and 2 more. Substitute compatibility should be verified for your specific system.
Is 118-222 PIECE 4 still available?
118-222 PIECE 4 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