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644500100011910 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

644500100011910: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include outside_diameter: 0.500 INCHES NOMINAL IN, material_thickness: 0.063 INCHES NOMINAL IN, end_item_identification: OIL COOLER 202 COMBINATION UNIT STRAINER, part_name_assigned_by_controlling_agency: LOCKWASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-648-0581, 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
644500100011910
NSN: 5310-01-648-0581
FSC: 5310 — Nuts and Washers
CAGE: 09032 — TATE ANDALE, LLC (USA)
SPECIFICATIONS
outside_diameter0.500 INCHES NOMINAL IN
material_thickness0.063 INCHES NOMINAL IN
end_item_identificationOIL COOLER 202 COMBINATION UNIT STRAINER
part_name_assigned_by_controlling_agencyLOCKWASHER
NSN5310-01-648-0581
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 644500100011910 · 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
•
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
MATERIAL THICKNESS0.063 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKWASHER
END ITEM IDENTIFICATIONOIL COOLER 202 COMBINATION UNIT STRAINER
SUBSTITUTES & CROSS-REFERENCES 2
N5738Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
N5738PCNO122Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 644500100011910?
644500100011910 is a WASHER,LOCK.
What parts can replace 644500100011910?
There are 2 known substitutes for 644500100011910: N5738, N5738PCNO122. Substitute compatibility should be verified for your specific system.
What is the NSN for 644500100011910?
644500100011910 is cataloged in the U.S. Government catalog under NSN 5310-01-648-0581. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.