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Technical Data Sheet
PartsTable / MRO / 2281
2281 ✓ Verified by PartsTable
Melissa & Doug · MRO · MRO_GENERAL
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

Multi-shaped and brightly colored beads swoop and slide along roller-coaster wires to encourage color and shape recognition and fine motor development. With a sturdy wooden base, this eye-catching activity will keep a little one busy for a long while! This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-033-5296, 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
MRO→ MRO_GENERAL→ 2281
NSN: 5310-00-033-5296
FSC: 5310
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
colorBLACK OVERALL
shapeRECTANGULAR
windowNOT INCLUDED
diameter0.375 INCHES NOMINAL IN
end_typeTHREADED FEMALE
materialPLASTIC
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
unit_typeTELESCOPING
body_width5.438 INCHES NOMINAL IN
scale_typeDIAL
body_height6.125 INCHES NOMINAL IN
body_length0.625 INCHES NOMINAL IN
NSN5310-00-033-5296
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2281 · Melissa & Doug ⚠ 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
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL: STEEL OVERALL
•
OUTSIDE DIAMETER: 0.453 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER0.453 INCHES NOMINAL IN
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
MATERIAL THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2281?
2281 is a COIL,RADIO FREQUENCY manufactured by Melissa & Doug. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 2281?
2281 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-033-5296. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026