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189787-0430 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

189787-0430: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, thickness: 0.100 INCHES NOMINAL IN, hole_diameter: 1.950 INCHES NOMINAL IN, major_thickness: 0.100 INCHES NOMINAL IN, overall_diameter: 2.998 INCHES NOMINAL IN, special_features: CUT IN HALF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-213-5405, 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
189787-0430
NSN: 5310-01-213-5405
NIINs: 012135405, 012412115
FSC: 5310 — Nuts and Washers
CAGE: 99657 — MAROTTA CONTROLS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness0.100 INCHES NOMINAL IN
hole_diameter1.950 INCHES NOMINAL IN
major_thickness0.100 INCHES NOMINAL IN
overall_diameter2.998 INCHES NOMINAL IN
special_featuresCUT IN HALF
peripheral_shape_styleROUND
casehardening_indicatorNOT CASEHARDENED
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN5310-01-213-5405
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 189787-0430 · 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
•
OVERALL DIAMETER: 2.998 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.950 INCHES NOMINAL IN
•
THICKNESS: 0.100 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.998 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESCUT IN HALF
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.950 INCHES NOMINAL IN
THICKNESS0.100 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
P189787-0430Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 189787-0430?
189787-0430 is a WASHER,FLAT.
What parts can replace 189787-0430?
There is 1 known substitute for 189787-0430: P189787-0430. Substitute compatibility should be verified for your specific system.
What is the NSN for 189787-0430?
189787-0430 is cataloged in the U.S. Government catalog under NSN 5310-01-213-5405. This indicates validated use in U.S. government and defense supply chains.
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