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Technical Data Sheet

2390-4 — Technical Data Sheet

✓ Verified by PartsTable
Trust · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

Wireless Bluetooth earphones with minimalist design and secure fit<br><br><b>Ultimate Freedom</b><br><br>Experience total freedom of movement without getting caught up in cables thanks to the Trust Nika Compact Wireless Earphones with easy to use on-ear control functions. Listen to music around the house while your phone is charging or when your phone is stowed away while traveling. And with on-the-go charging capabilities, these earphones will ensure you can enjoy your music even during the longest trips.<br><br><b>Charge as you Go</b><br><br>The earphones have a playtime of up to 8 hours on a single charge, but the music doesn’t stop there.

Place the earphones in the compact carrying case, and they will start recharging, resulting in a total playtime of up to 18 hours on the go.<br><br><b>Soft and Secure</b><br><br>The soft-silicone plugs are designed to be comfortable, even during long listening sessions. In addition, the secure design will make sure the earphones will stay firmly i This part is cataloged in the Federal Logistics Information System under NSN 3120-00-045-9358, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
2390-4
NSN: 3120-00-045-9358
FSC: 3120
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY SOURCE CONTROLLED DRAWING NO. 205-075-388-1
NSN3120-00-045-9358
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2390-4 · Trust ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: OIL LUBRICATING LUBRICATION
•
HARDNESS RATING: 57.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
SURFACE GROOVE LOCATION AND QUANTITY: 1 EXTERNAL
•
BODY OUTSIDE DIAMETER: 2.0040 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
MATERIALOIL LUBRICATING LUBRICATION
OVERALL LENGTH1.0000 INCHES NOMINAL IN
HARDNESS RATING57.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
FEATURES PROVIDEDCASEHARDENED
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
SURFACE GROOVE LOCATION AND QUANTITY1 EXTERNAL
BODY OUTSIDE DIAMETER2.0040 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1020 OVERALL
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
205-075-388-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1704-1001-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
707299-03InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10003161InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
173254InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
S23904InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2390-4?
2390-4 is a SPRING ASSEMBLY,LEAF manufactured by Trust.
What parts can replace 2390-4?
There are 6 known substitutes for 2390-4: 205-075-388-1, 1704-1001-2, 707299-03 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2390-4?
2390-4 is cataloged in the Federal Logistics Information System under NSN 3120-00-045-9358. This indicates validated use in U.S. government and defense supply chains.
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