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Technical Data Sheet
PartsTable / COMPONENT / 561-6404325-1140A
561-6404325-1140A ✓ 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: STEEL OVERALL, overall_width: 0.250 INCHES NOMINAL IN, overall_height: 0.125 INCHES NOMINAL IN, overall_length: 12.000 INCHES NOMINAL IN, style_designator: FLAT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-408-7152, 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
561-6404325-1140A
NSN: 5315-01-408-7152
FSC: 5315
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.250 INCHES NOMINAL IN
overall_height0.125 INCHES NOMINAL IN
overall_length12.000 INCHES NOMINAL IN
style_designatorFLAT
NSN5315-01-408-7152
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 561-6404325-1140A · 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: STEEL OVERALL
•
STYLE DESIGNATOR: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH12.000 INCHES NOMINAL IN
OVERALL WIDTH0.250 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORFLAT
OVERALL HEIGHT0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
PA3216Interchangeable
interchangeable cross-reference
interchangeable
LS3239Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQ-A-200/3Interchangeable
interchangeable cross-reference
interchangeable
SR-6P-4Interchangeable
interchangeable cross-reference
interchangeable
457-6150Interchangeable
interchangeable cross-reference
interchangeable
P22529-001-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 561-6404325-1140A?
561-6404325-1140A is a KEY,MACHINE.
What parts can replace 561-6404325-1140A?
There are 16 known substitutes for 561-6404325-1140A: PA3216, LS3239, AMS-QQ-A-200/3 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 561-6404325-1140A?
561-6404325-1140A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-408-7152. 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