PartsTable
Technical Data Sheet
21840 ✓ Verified by PartsTable
Lindy · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The Micro Wireless Keyboard & Mouse is designed for use with your home theatre computer (HTPC). It provides a convenient way to control your PC and access key functions. Roughly the same size as a TV remote control, the keyboard sits perfectly in your home living room environment and will operate comfortably for up to 3 months when powered by standard AAA batteries.<br><br>- Compact wireless keyboard with integrated optical mouse<br>- Full 56 Key layout, with multimedia controls<br>- QWERTY keyboard layout<br>- Optical mouse sensor with 400dpi resolution<br>- Swipe feature for speedy scrolling (Windows only)<br>- RF 2.4GHz Wireless Technology, range up to 10m<br>- USB RF Nano Dongle; ejection turns device on, replacing turns device off<br>- Requires 2 x AAA battery (supplied)<br>- Battery life up to 3 months<br>- Dimensions: 110 x 60 x 18mm (WxDxH)<br>- Compatible with USB enabled Operating Systems & PS3 This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-009-3898, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
21840
NSN: 5330-00-009-3898
FSC: 5330
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL CASE
disk_typeINTERNAL TEETH
base_styleSINGLE PIN (FLUORESCENT)
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
bulb_styleT (TUBULAR)
case_styleSQUARE
seal_width0.500 INCHES NOMINAL IN
design_typeDRY
flexibilityRIGID
temp_rating-65.0 FAHRENHEIT AND 225.0 FAHRENHEIT DEGF
overall_length96.000 INCHES NOMINAL IN
wattage_rating59.000 WATTS
NSN5330-00-009-3898
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21840 MFR: Lindy ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT
OUTSIDE DIAMETER: 3.256 INCHES NOMINAL IN
SEAL WIDTH: 0.500 INCHES NOMINAL IN
CASE STYLE: SQUARE
ACCOMMODATED SHAFT DIAMETER: 2.188 INCHES NOMINAL IN
SURFACE TREATMENT: PLASTIC CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
SEALING ELEMENT STYLE: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
OUTSIDE DIAMETER3.256 INCHES NOMINAL IN
SEAL WIDTH0.500 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER2.188 INCHES NOMINAL IN
SURFACE TREATMENTPLASTIC CASE
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
SEALING ELEMENT STYLEANGULAR
MATERIALSTEEL CASE
HOUSING BORE DIAMETER3.252 INCHES MINIMUM AND 3.256 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
3208XIAInterchangeable
interchangeable cross-reference
interchangeable
903208Interchangeable
interchangeable cross-reference
interchangeable
30D86Interchangeable
interchangeable cross-reference
interchangeable
FLU-6/PInterchangeable
interchangeable cross-reference
interchangeable
3208Interchangeable
interchangeable cross-reference
interchangeable
FLU6PInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21840?
21840 is a RESISTOR,FIXED,WIRE WOUND,INDUCT manufactured by Lindy.
What parts can replace 21840?
There are 22 known substitutes for 21840: 3208XIA, 903208, 30D86 and 19 more. Substitute compatibility should be verified for your specific system.
Is 21840 still available?
21840 is currently cancelled.
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