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212421-1 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

212421-1: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: PLAIN STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-391-0816, 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→ 212421-1
NSN: 3040-01-391-0816
NIINs: 013910816, 016689878
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 31218 — AMI INDUSTRIES, INC DIV UTC AEROSPACE SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
bore_typePLAIN STRAIGHT
NSN3040-01-391-0816
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN 212421-1 MFR BOOT,DUST AND MOISTURE
KEY FEATURES
•
BORE TYPE: PLAIN STRAIGHT
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
BORE TYPEPLAIN STRAIGHT
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
21242Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 212421-1?
212421-1 is a BOOT,DUST AND MOISTURE SEAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 212421-1?
There is 1 known substitute for 212421-1: 21242. Substitute compatibility should be verified for your specific system.
What is the NSN for 212421-1?
212421-1 is cataloged in the U.S. Government catalog under NSN 3040-01-391-0816. 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.