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6643225-013 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6643225-013: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SLEEVE, nut_length: 4.120 INCHES NOMINAL IN, nut_diameter: 4.620 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-386-7828, 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
6643225-013
NSN: 5310-01-386-7828
FSC: 5310 — Nuts and Washers
CAGE: 01289 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSLEEVE
nut_length4.120 INCHES NOMINAL IN
nut_diameter4.620 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
boss_thickness1.760 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
surface_treatmentCOPPER OVERALL
nominal_thread_size3.000 INCHES IN
counterbore_diameter3.120 INCHES NOMINAL NUT IN
cross-sectional_shapeHEXAGONAL BOSS
NSN5310-01-386-7828
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6643225-013 · 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: 4.120 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
NUT COUNTERBORE DEPTH: 3.500 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.000 INCHES IN
•
NUT DIAMETER: 4.620 INCHES NOMINAL IN
•
COUNTERBORE DIAMETER: 3.120 INCHES NOMINAL NUT IN
•
BOSS THICKNESS: 1.760 INCHES NOMINAL OVERALL IN
TECHNICAL CHARACTERISTICS
NUT LENGTH4.120 INCHES NOMINAL IN
THREAD SERIESUN
NUT COUNTERBORE DEPTH3.500 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.000 INCHES IN
NUT DIAMETER4.620 INCHES NOMINAL IN
COUNTERBORE DIAMETER3.120 INCHES NOMINAL NUT IN
BOSS THICKNESS1.760 INCHES NOMINAL OVERALL IN
BOSS WIDTH ACROSS FLATS3.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPEHEXAGONAL BOSS
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 1
6643225-13Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 6643225-013?
6643225-013 is a NUT,SLEEVE.
What parts can replace 6643225-013?
There is 1 known substitute for 6643225-013: 6643225-13. Substitute compatibility should be verified for your specific system.
What is the NSN for 6643225-013?
6643225-013 is cataloged in the U.S. Government catalog under NSN 5310-01-386-7828. 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.