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6-52643 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6-52643: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8630 OR STEEL COMP 4130 OVERALL, nut_length: 0.810 INCHES NOMINAL IN, nut_diameter: 0.430 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.500 INCHES MINIMUM OVERALL IN, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-308-3189, 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
6-52643
NSN: 5310-00-308-3189
FSC: 5310 — Nuts and Washers
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL COMP 8630 OR STEEL COMP 4130 OVERALL
nut_length0.810 INCHES NOMINAL IN
nut_diameter0.430 INCHES NOMINAL IN
thread_class2B
thread_length0.500 INCHES MINIMUM OVERALL IN
thread_seriesUNF
thread_directionRIGHT-HAND
countersink_angle110.0 DEGREES NOMINAL NUT
nominal_thread_size0.250 INCHES IN
cross-sectional_shapeROUND NUT
thread_quantity_per_inch28
material_document_and_classificationMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NSN5310-00-308-3189
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6-52643 · 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
•
NUT LENGTH: 0.810 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD LENGTH: 0.500 INCHES MINIMUM OVERALL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT DIAMETER: 0.430 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE: ROUND NUT
TECHNICAL CHARACTERISTICS
NUT LENGTH0.810 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD LENGTH0.500 INCHES MINIMUM OVERALL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
NUT DIAMETER0.430 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEROUND NUT
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
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

No substitute or cross-reference records for this part.

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 6-52643?
6-52643 is a NUT,SLEEVE.
What is the NSN for 6-52643?
6-52643 is cataloged in the U.S. Government catalog under NSN 5310-00-308-3189. 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.