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Technical Data Sheet
1916643 ✓ 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 1010 OVERALL, thickness: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN, hole_diameter: 0.692 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN, overall_diameter: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND DICHROMATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-262-4754, 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
1916643
NSN: 5310-00-262-4754
FSC: 5310
CAGE: 23862 — MILITARY VEHICLES OPN GENERAL MOTORS TRUCK AND BUS GROUP MS 2603-02 (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
thickness0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
hole_diameter0.692 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
overall_diameter1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND DICHROMATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-262-4754
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1916643 · 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
MATERIAL: STEEL COMP 1010 OVERALL
THICKNESS: 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLE: ROUND
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLE: ROUND
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
OVERALL DIAMETER: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
SURFACE TREATMENT: CADMIUM AND DICHROMATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1010 OVERALL
THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND DICHROMATE OVERALL
HOLE DIAMETER0.692 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
118915Interchangeable
interchangeable cross-reference
interchangeable
542-6115-002Interchangeable
interchangeable cross-reference
interchangeable
119650Interchangeable
interchangeable cross-reference
interchangeable
KC8034Interchangeable
Same NIIN cross-reference
interchangeable
635B1Interchangeable
Same NIIN cross-reference
interchangeable
914570Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1916643?
1916643 is a WASHER,FLAT.
What parts can replace 1916643?
There are 6 known substitutes for 1916643: 118915, 542-6115-002, 119650 and 3 more. Substitute compatibility should be verified for your specific system.
Is 1916643 still available?
1916643 is currently cancelled.
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