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2643350 — NUT,PLAIN,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2643350: NUT,PLAIN,CLINCH.

The NUT,PLAIN,CLINCH is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OVERALL, nut_style: CLINCH, nut_height: 0.545 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN, pilot_length: 0.285 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-141-3672, 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
2643350
NSN: 5310-01-141-3672
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OVERALL
nut_styleCLINCH
nut_height0.545 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
pilot_length0.285 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNF
pilot_diameter0.392 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
hardness_rating25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
width_across_flats0.562 INCHES NOMINAL IN
nominal_thread_size0.312 INCHES IN
thread_quantity_per_inch24
NSN5310-01-141-3672
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2643350 · 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
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
PILOT DIAMETER: 0.392 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.285 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
THREAD SERIESUNF
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
PILOT DIAMETER0.392 INCHES MINIMUM AND 0.397 INCHES MAXIMUM IN
PILOT LENGTH0.285 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
NUT HEIGHT0.545 INCHES MINIMUM AND 0.550 INCHES MAXIMUM IN
NUT STYLECLINCH
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2643350?
2643350 is a NUT,PLAIN,CLINCH.
What is the NSN for 2643350?
2643350 is cataloged in the U.S. Government catalog under NSN 5310-01-141-3672. This indicates validated use in U.S. government and defense supply chains.
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