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666363 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

666363: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: ROUND, nut_diameter: 1.376 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN, thread_class: 3BG, nut_thickness: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, thread_series: UNJEF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-155-4671, 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
666363
NSN: 5310-00-155-4671
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleROUND
nut_diameter1.376 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
thread_class3BG
nut_thickness0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
thread_seriesUNJEF
thread_directionRIGHT-HAND
drive_point_depth0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
drive_point_width0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.812 INCHES IN
drive_point_quantity8
NSN5310-00-155-4671
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 666363 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNJEF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.812 INCHES IN
•
NUT DIAMETER: 1.376 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
•
DRIVE POINT DEPTH: 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNJEF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.812 INCHES IN
NUT DIAMETER1.376 INCHES MINIMUM AND 1.396 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
NUT THICKNESS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
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 666363?
666363 is a NUT,PLAIN,ROUND.
What is the NSN for 666363?
666363 is cataloged in the U.S. Government catalog under NSN 5310-00-155-4671. This indicates validated use in U.S. government and defense supply chains.
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