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PartsTable / COMPONENT / A1642 PIECE 13
A1642 PIECE 13 ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, overall_width: 0.188 INCHES NOMINAL IN, overall_height: 0.188 INCHES NOMINAL IN, overall_length: 1.250 INCHES NOMINAL IN, style_designator: PLAIN, material_document_and_classification: QQ-N-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-251-4768, 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
A1642 PIECE 13
NSN: 5315-01-251-4768
FSC: 5315
CAGE: 64392 — WEIL PUMP CO INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
overall_width0.188 INCHES NOMINAL IN
overall_height0.188 INCHES NOMINAL IN
overall_length1.250 INCHES NOMINAL IN
style_designatorPLAIN
material_document_and_classificationQQ-N-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-251-4768
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A1642 PIECE 13 · 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-N-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: NICKEL ALLOY OVERALL
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY OVERALL
OVERALL HEIGHT0.188 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
OVERALL WIDTH0.188 INCHES NOMINAL IN
OVERALL LENGTH1.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
4720206235Interchangeable
interchangeable cross-reference
interchangeable
5315PL1361817Interchangeable
interchangeable cross-reference
interchangeable
AM5614-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1642 PIECE 13?
A1642 PIECE 13 is a KEY,MACHINE.
What parts can replace A1642 PIECE 13?
There are 3 known substitutes for A1642 PIECE 13: 4720206235, 5315PL1361817, AM5614-2. Substitute compatibility should be verified for your specific system.
What is the NSN for A1642 PIECE 13?
A1642 PIECE 13 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-251-4768. 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