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4231221 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4231221: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include overall_height: 0.27 INCHES NOMINAL IN, style_designator: THRU-HOLE, width_across_flats: 0.39 INCHES NOMINAL IN, end_item_identification: 4210-01-622-0440, opening_inside_diameter: 0.25 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: BOOT, TGL, BLACK. This part is cataloged in the U.S.

Government catalog under NSN 5930-01-700-9491, 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
4231221
NSN: 5930-01-700-9491
FSC: 5930 — Switches
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
overall_height0.27 INCHES NOMINAL IN
style_designatorTHRU-HOLE
width_across_flats0.39 INCHES NOMINAL IN
end_item_identification4210-01-622-0440
opening_inside_diameter0.25 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBOOT, TGL, BLACK
NSN5930-01-700-9491
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BOOT,DUST AND MOISTURE SEAL TITLE COMPONENT PN 4231221 MFR BOOT,DUST AND MOISTURE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.39 INCHES NOMINAL IN
•
OPENING INSIDE DIAMETER: 0.25 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.27 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.39 INCHES NOMINAL IN
OPENING INSIDE DIAMETER0.25 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
PART NAME ASSIGNED BY CONTROLLING AGENCYBOOT, TGL, BLACK
END ITEM IDENTIFICATION4210-01-622-0440
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
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 4231221?
4231221 is a BOOT,DUST AND MOISTURE SEAL.
What is the NSN for 4231221?
4231221 is cataloged in the U.S. Government catalog under NSN 5930-01-700-9491. 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.