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191089 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

191089: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 101 OVERALL, thickness: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN, hole_diameter: 0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, overall_diameter: 0.673 INCHES MINIMUM AND 0.683 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-641-8327, 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
191089
NSN: 5310-00-641-8327
NIINs: 006418327, 013270807
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialCOPPER ALLOY 101 OVERALL
thickness0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
hole_diameter0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
overall_diameter0.673 INCHES MINIMUM AND 0.683 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-641-8327
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 191089 · 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: 0.673 INCHES MINIMUM AND 0.683 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER ALLOY 101 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
•
THICKNESS: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.673 INCHES MINIMUM AND 0.683 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4500 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALCOPPER ALLOY 101 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.443 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
THICKNESS0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
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 191089?
191089 is a WASHER,FLAT.
What is the NSN for 191089?
191089 is cataloged in the U.S. Government catalog under NSN 5310-00-641-8327. This indicates validated use in U.S. government and defense supply chains.
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