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291221 — GEAR ASSEMBLY,SPEED DECREASER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

291221: GEAR ASSEMBLY,SPEED DECREASER.

The GEAR ASSEMBLY,SPEED DECREASER is a the manufacturer industrial component. Key specifications include width: 6.000 INCHES NOMINAL IN, length: 24.000 INCHES NOMINAL IN, thickness: 0.062 INCHES NOMINAL IN, special_features: WALNUT ONE SIDE,WHITE OTHER SIDE; SMOOTH FINISH, grade_designation: STANDARD, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY LENGTH AND WIDTH. This part is cataloged in the U.S.

Government catalog under NSN 6615-00-032-0341, 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
291221
NSN: 6615-00-032-0341
NIINs: 000320341, 000371903, 009694043, 010479113
FSC: 6615 — Automatic Pilot Mechanisms and Airborne Gyro Components
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
width6.000 INCHES NOMINAL IN
length24.000 INCHES NOMINAL IN
thickness0.062 INCHES NOMINAL IN
special_featuresWALNUT ONE SIDE,WHITE OTHER SIDE; SMOOTH FINISH
grade_designationSTANDARD
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY LENGTH AND WIDTH
NSN6615-00-032-0341
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR ASSEMBLY,SPEED DECREASER TITLE COMPONENT PN 291221 MFR GEAR ASSEMBLY,SPEED DE
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 291221?
291221 is a GEAR ASSEMBLY,SPEED DECREASER.
What is the NSN for 291221?
291221 is cataloged in the U.S. Government catalog under NSN 6615-00-032-0341. 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.