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21929 — SEMICONDUCTOR DEVICE,DIODE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

21929: SEMICONDUCTOR DEVICE,DIODE.

The SEMICONDUCTOR DEVICE,DIODE is a the manufacturer industrial component. Key specifications include material: GLASS ENCLOSURE, governor_type: CENTRIFUGAL SWITCH, overall_length: 0.680 INCHES NOMINAL IN, mounting_method: TERMINAL, terminal_length: 1.010 INCHES MAXIMUM IN, overall_diameter: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-058-1286, 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
21929
NSN: 5340-00-058-1286
NIINs: 000581286, 005040409, 005778156, 010103913, 011177339
FSC: 5340 — Hardware, Commercial
CAGE: 18068 — ASTROCOM ELECTRONICS INC (USA)
SPECIFICATIONS
materialGLASS ENCLOSURE
governor_typeCENTRIFUGAL SWITCH
overall_length0.680 INCHES NOMINAL IN
mounting_methodTERMINAL
terminal_length1.010 INCHES MAXIMUM IN
overall_diameter1.500 INCHES NOMINAL IN
special_featuresADJUSTED TO MAINTAIN CONTACTS CLOSED FROM ZERO TO APPROX 4000 RPM,OPENING ABOVE THAT SPEED TO CONTROL AT 6000 RPM,MINUS 75 DEG C TO PLUS 90 DEG C AMBIENT TEMP RANGE,MOISTURE AND FUNGUS PROOFED DEGC
covering_locationOUTER
features_providedHERMETICALLY SEALED CASE
speed_adjustmentsSINGLE SPEED
fsc_application_dataHARDWARE,MISCELLANEOUS
mounting_configurationMOUNTS ON 1/4 IN. SHAFT BY 2 SET SCREWS,NO. 8-32 THD LOCATED 90 DEG APART IN
NSN5340-00-058-1286
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 21929 MFR: OEM ⚠ 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
•
FSC APPLICATION DATA: HARDWARE,MISCELLANEOUS
•
COVERING LOCATION: OUTER
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAHARDWARE,MISCELLANEOUS
COVERING LOCATIONOUTER
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21929?
21929 is a SEMICONDUCTOR DEVICE,DIODE.
What is the NSN for 21929?
21929 is cataloged in the U.S. Government catalog under NSN 5340-00-058-1286. This indicates validated use in U.S. government and defense supply chains.
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