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21C346 — PROTECTOR,TURBINE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

21C346: PROTECTOR,TURBINE.

The PROTECTOR,TURBINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON EXTENDED WASHER, head_height: 0.500 INCHES NOMINAL IN, thread_class: 2A A, thread_length: 1.750 INCHES NOMINAL IN, fastener_length: 1.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4920-00-703-9129, 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
21C346
NSN: 4920-00-703-9129
NIINs: 007039129, 015036298
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON EXTENDED WASHER
head_height0.500 INCHES NOMINAL IN
thread_class2A A
thread_length1.750 INCHES NOMINAL IN
fastener_length1.750 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentPHOSPHATE OVERALL
width_between_flats0.562 INCHES NOMINAL IN
end_item_identification2320-01-452-5579
nominal_thread_diameter0.500 INCHES IN
extended_washer_diameter0.750 INCHES NOMINAL IN
NSN4920-00-703-9129
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PROTECTOR,TURBINE TITLE COMPONENT PN 21C346 MFR PROTECTOR,TURBINE
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 21C346?
21C346 is a PROTECTOR,TURBINE.
What is the NSN for 21C346?
21C346 is cataloged in the U.S. Government catalog under NSN 4920-00-703-9129. 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.