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PK21A — GEAR,WORM

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

PK21A: GEAR,WORM.

The GEAR,WORM is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_form_quantity: 22, thread_form_direction: RIGHT-HANDRIGHT-HAND, nominal_overall_length: 2.000 INCHES2.000 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-140-2152, 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
PK21A
NSN: 3020-01-140-2152
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 12763 — DYNALEC CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_form_quantity22
thread_form_directionRIGHT-HANDRIGHT-HAND
nominal_overall_length2.000 INCHES2.000 INCHES IN
NSN3020-01-140-2152
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,WORM TITLE COMPONENT PN PK21A MFR GEAR,WORM
KEY FEATURES
•
THREAD FORM DIRECTION: RIGHT-HANDRIGHT-HAND
•
NOMINAL OVERALL LENGTH: 2.000 INCHES2.000 INCHES IN
•
THREAD FORM QUANTITY: 22
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
THREAD FORM DIRECTIONRIGHT-HANDRIGHT-HAND
NOMINAL OVERALL LENGTH2.000 INCHES2.000 INCHES IN
THREAD FORM QUANTITY22
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072
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 PK21A?
PK21A is a GEAR,WORM.
What is the NSN for PK21A?
PK21A is cataloged in the U.S. Government catalog under NSN 3020-01-140-2152. 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.