PartsTable
Technical Data Sheet
20828 ✓ Verified by PartsTable
Clementoni · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

Children's jigsaw puzzle with 3,6,9,12 pieces<br><br>A vast array of jigsaw puzzles specially designed for kids to help them hone their powers of observation as well as their logical and manual skills. Captivating images with vibrant appealing colours, depicting children's most beloved characters for hours of fun with friends and family.<br><br>Acutely attuned to the importance of environmental awareness, Clementoni makes extensive use of recycled materials and avoids any components containing pollutants.<br><br>Made in Italy.<br><br>Visit Clementoni's support section to benefit from the “lost pieces” service<br> This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-172-6338, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
20828
NSN: 5310-00-172-6338
FSC: 5310
CAGE: 19397 — BAE SYSTEMS INFORMATION & ELECTRONIC SYSTEMS INTEGRATION INC. (USA)
SPECIFICATIONS
materialPAPER AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
nut_styleCLINCH
body_width1.750 INCHES NOMINAL IN
nut_height0.373 INCHES NOMINAL IN
body_height2.188 INCHES NOMINAL IN
body_length1.875 INCHES NOMINAL IN
nut_diameter0.250 INCHES NOMINAL IN
pilot_length0.038 INCHES MAXIMUM IN
thread_class2B
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
inclosure_typeHERMETICALLY SEALED
NSN5310-00-172-6338
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20828 · Clementoni ⚠ 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 HEIGHT: 0.373 INCHES NOMINAL IN
PILOT DIAMETER: 0.165 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THREAD SIZE: 0.112 INCHES IN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH: 40
NUT DIAMETER: 0.250 INCHES NOMINAL IN
NUT STYLE: CLINCH
TECHNICAL CHARACTERISTICS (FLIS)
NUT HEIGHT0.373 INCHES NOMINAL IN
PILOT DIAMETER0.165 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL THREAD SIZE0.112 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH40
NUT DIAMETER0.250 INCHES NOMINAL IN
NUT STYLECLINCH
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
20828Interchangeable
interchangeable cross-reference
interchangeable
FRP-95-566Interchangeable
interchangeable cross-reference
interchangeable
B-3643Interchangeable
interchangeable cross-reference
interchangeable
24073-0001Interchangeable
Same NIIN cross-reference
interchangeable
B-440-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20828?
20828 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Clementoni.
What parts can replace 20828?
There are 5 known substitutes for 20828: 20828, FRP-95-566, B-3643 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20828?
20828 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-172-6338. This indicates validated use in U.S. government and defense supply chains.
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