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187445 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

187445: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 OR STEEL COMP 302 OVERALL, thickness: 0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN, hole_diameter: 0.750 INCHES NOMINAL IN, overall_diameter: 1.118 INCHES MINIMUM AND 1.122 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-298-9205, 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
187445
NSN: 5310-00-298-9205
FSC: 5310 — Nuts and Washers
CAGE: 2A659 — AIRMOTIVE CARBURETOR (USA)
SPECIFICATIONS
materialSTEEL COMP 410 OR STEEL COMP 302 OVERALL
thickness0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
hole_diameter0.750 INCHES NOMINAL IN
overall_diameter1.118 INCHES MINIMUM AND 1.122 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 5504 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5516 ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN5310-00-298-9205
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 187445 · 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: 1.118 INCHES MINIMUM AND 1.122 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5504 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5516 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 410 OR STEEL COMP 302 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.118 INCHES MINIMUM AND 1.122 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5504 ASSN STD 1ST MATERIAL RESPONSE AND AMS 5516 ASSN STD 2ND MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 410 OR STEEL COMP 302 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.750 INCHES NOMINAL IN
THICKNESS0.045 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 187445?
187445 is a WASHER,FLAT.
What is the NSN for 187445?
187445 is cataloged in the U.S. Government catalog under NSN 5310-00-298-9205. This indicates validated use in U.S. government and defense supply chains.
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