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2281 — COIL,RADIO FREQUENCY

✓ Government record, cited
Melissa & Doug · MRO · MRO_GENERAL
PRODUCT OVERVIEW

2281: COIL,RADIO FREQUENCY.

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 U.S.

Government catalog 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
NIINs: 000335296, 000661058, 002397469, 002764239, 002911180, 002919366, 004975276, 005290006, 005534596, 005941977, 006154625, 006458308, 007276892, 008533489, 008620367, 009155566, 009704670, 009876862, 010526958, 013352520, 014260310, 014567939, 015165390
FSC: 5310 — Nuts and Washers
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
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
design_typeFLUCTUATING
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
•
OUTSIDE DIAMETER: 0.453 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
OUTSIDE DIAMETER0.453 INCHES NOMINAL IN
MATERIAL THICKNESS0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
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
No demilitarization required
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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 U.S. Government catalog under NSN 5310-00-033-5296. 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.