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CLA-440-2 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

CLA-440-2: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, nut_style: CLINCH, nut_height: 0.147 INCHES NOMINAL IN, nut_diameter: 0.250 INCHES NOMINAL IN, pilot_length: 0.054 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-027-6138, 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
CLA-440-2
NSN: 5310-00-027-6138
FSC: 5310 — Nuts and Washers
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
nut_styleCLINCH
nut_height0.147 INCHES NOMINAL IN
nut_diameter0.250 INCHES NOMINAL IN
pilot_length0.054 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.185 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_size0.112 INCHES IN
thread_quantity_per_inch40
NSN5310-00-027-6138
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: CLA-440-2 · 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
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
NUT DIAMETER: 0.250 INCHES NOMINAL IN
•
PILOT DIAMETER: 0.185 INCHES NOMINAL IN
•
PILOT LENGTH: 0.054 INCHES NOMINAL IN
•
NUT HEIGHT: 0.147 INCHES NOMINAL IN
•
NUT STYLE: CLINCH
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
NUT DIAMETER0.250 INCHES NOMINAL IN
PILOT DIAMETER0.185 INCHES NOMINAL IN
PILOT LENGTH0.054 INCHES NOMINAL IN
NUT HEIGHT0.147 INCHES NOMINAL IN
NUT STYLECLINCH
THREAD CLASS2B
THREAD QUANTITY PER INCH40
SUBSTITUTES & CROSS-REFERENCES 3
440NKA-(0.056)Reference document
Same NSN cross-reference
Reference document — Secondary reference
M45938/1-7AReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-N-45938/1Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is CLA-440-2?
CLA-440-2 is a NUT,PLAIN,CLINCH.
What parts can replace CLA-440-2?
There are 3 known substitutes for CLA-440-2: 440NKA-(0.056), M45938/1-7A, MIL-N-45938/1. Substitute compatibility should be verified for your specific system.
What is the NSN for CLA-440-2?
CLA-440-2 is cataloged in the U.S. Government catalog under NSN 5310-00-027-6138. 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.