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Technical Data Sheet
PartsTable / COMPONENT / 4019-53
4019-53 ✓ 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include special_features: CROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-579-0911, 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
4019-53
NSN: 5310-00-579-0911
FSC: 5310
CAGE: 66503 — WOODWARD, INC. DIV FUEL SYSTEMS AND CONTROLS (USA)
SPECIFICATIONS
special_featuresCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
NSN5310-00-579-0911
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4019-53 · 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
•
RECESS DEPTH: 0.030 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECESSED
•
SURFACE TREATMENT: ANODIZE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: ALUMINUM ALLOY 6061 OVERALL
•
MATERIAL THICKNESS: 0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.748 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
RECESS DEPTH0.030 INCHES NOMINAL IN
STYLE DESIGNATORRECESSED
SURFACE TREATMENTANODIZE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 6061 OVERALL
OVERALL HEIGHT0.150 INCHES NOMINAL IN
MATERIAL THICKNESS0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.748 INCHES NOMINAL IN
HOLE DIAMETER0.510 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
E-700Interchangeable
interchangeable cross-reference
interchangeable
338Interchangeable
interchangeable cross-reference
interchangeable
00489Interchangeable
interchangeable cross-reference
interchangeable
4019-53Interchangeable
interchangeable cross-reference
interchangeable
PR50SERIES PIECE 34Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4019-53?
4019-53 is a PACKING,PREFORMED.
What parts can replace 4019-53?
There are 5 known substitutes for 4019-53: E-700, 338, 00489 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4019-53?
4019-53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-579-0911. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026