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731-00444-20 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

731-00444-20: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: CLINCH, nut_height: 0.259 INCHES NOMINAL IN, nut_diameter: 0.438 INCHES NOMINAL IN, pilot_length: 0.087 INCHES NOMINAL IN, thread_class: 2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-124-3143, 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
731-00444-20
NSN: 5310-00-124-3143
FSC: 5310 — Nuts and Washers
CAGE: 04773 — GTE COMMUNICATION SYSTEMS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleCLINCH
nut_height0.259 INCHES NOMINAL IN
nut_diameter0.438 INCHES NOMINAL IN
pilot_length0.087 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.342 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.250 INCHES IN
thread_quantity_per_inch20
NSN5310-00-124-3143
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 731-00444-20 · 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: 0.250 INCHES IN
•
NUT DIAMETER: 0.438 INCHES NOMINAL IN
•
PILOT DIAMETER: 0.342 INCHES NOMINAL IN
•
PILOT LENGTH: 0.087 INCHES NOMINAL IN
•
NUT HEIGHT: 0.259 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.438 INCHES NOMINAL IN
PILOT DIAMETER0.342 INCHES NOMINAL IN
PILOT LENGTH0.087 INCHES NOMINAL IN
NUT HEIGHT0.259 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLECLINCH
THREAD CLASS2B
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 4
18010D-SS-2520Reference document
Same NSN cross-reference
Reference document — Secondary reference
720NKS-(0.091)Reference document
Same NSN cross-reference
Reference document — Secondary reference
5486639-0056Reference document
Same NSN cross-reference
Reference document — Secondary reference
84001097-033Reference document
Same NSN cross-reference
Reference document — Vendor item drawing 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 731-00444-20?
731-00444-20 is a NUT,PLAIN,CLINCH.
What parts can replace 731-00444-20?
There are 4 known substitutes for 731-00444-20: 18010D-SS-2520, 720NKS-(0.091), 5486639-0056 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 731-00444-20?
731-00444-20 is cataloged in the U.S. Government catalog under NSN 5310-00-124-3143. 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.