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Technical Data Sheet
1719576 ✓ 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: 0.051 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN, hole_diameter: 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES BOTTOM, overall_diameter: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-325-1911, 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
1719576
NSN: 5310-00-325-1911
FSC: 5310
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
thickness0.051 INCHES MINIMUM AND 0.053 INCHES MAXIMUM IN
hole_diameter0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES BOTTOM
overall_diameter0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-763, COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-325-1911
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1719576 · 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 DOCUMENT AND CLASSIFICATION: QQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
MATERIAL: STEEL COMP 303 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PERIPHERAL SHAPE STYLE: ROUND
CENTER HOLE SHAPE STYLE: ROUND
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 TYPE 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
THICKNESS0.050 INCHES NOMINAL IN
HOLE DIAMETER0.113 INCHES MINIMUM AND 0.123 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
30305Interchangeable
interchangeable cross-reference
interchangeable
1719576Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1719576?
1719576 is a WASHER,FLAT.
What parts can replace 1719576?
There are 2 known substitutes for 1719576: 30305, 1719576. Substitute compatibility should be verified for your specific system.
Is 1719576 still available?
1719576 is currently cancelled.
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