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LW1665-1 — Technical Data Sheet

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— · 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 PIN,QUICK RELEASE is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System under NSN 5315-01-033-7069, 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
LW1665-1
NSN: 5315-01-033-7069
FSC: 5315
CAGE: 83014 — HARTWELL CORPORATION (USA)
SPECIFICATIONS
Part NumberLW1665-1
NSN5315-01-033-7069
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: LW1665-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
52811InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SM-B-157349InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A5454InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
107747InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9611NInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B107.100 CAT 66 TY1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LW1665-1?
LW1665-1 is a PIN,QUICK RELEASE.
What parts can replace LW1665-1?
There are 6 known substitutes for LW1665-1: 52811, SM-B-157349, A5454 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LW1665-1?
LW1665-1 is cataloged in the Federal Logistics Information System under NSN 5315-01-033-7069. 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: October 2026