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7921K21 — 7921K21

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7921K21: 7921K21.

The 7921K21 is a the manufacturer industrial component. Key specifications include width: 1.562 INCHES NOMINAL IN, step_length: 0.500 INCHES NOMINAL IN, stud_length: 1.00 INCHES NOMINAL IN, step_diameter: 0.625 INCHES NOMINAL IN, stud_diameter: 0.250 INCHES NOMINAL IN, thread_length: 1.0 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5355-01-641-9511, 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
7921K21
NSN: 5355-01-641-9511
FSC: 5355 — Knobs and Pointers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
width1.562 INCHES NOMINAL IN
step_length0.500 INCHES NOMINAL IN
stud_length1.00 INCHES NOMINAL IN
step_diameter0.625 INCHES NOMINAL IN
stud_diameter0.250 INCHES NOMINAL IN
thread_length1.0 INCHES NOMINAL IN
special_featuresNYLON KNOB WITH STEEL STUD
style_designatorFLUTED FOILS
thread_directionRIGHT-HAND
attachment_methodSTUD
overall_thickness0.437 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES STUD IN
NSN5355-01-641-9511
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 7921K21 TITLE COMPONENT PN 7921K21 MFR 7921K21
KEY FEATURES
•
STEP LENGTH: 0.500 INCHES NOMINAL IN
•
THREAD LENGTH: 1.0 INCHES NOMINAL IN
•
OVERALL THICKNESS: 0.437 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLUTED FOILS
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES STUD IN
•
STUD LENGTH: 1.00 INCHES NOMINAL IN
•
COLOR: RED
TECHNICAL CHARACTERISTICS
STEP LENGTH0.500 INCHES NOMINAL IN
THREAD LENGTH1.0 INCHES NOMINAL IN
OVERALL THICKNESS0.437 INCHES NOMINAL IN
STYLE DESIGNATORFLUTED FOILS
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES STUD IN
STUD LENGTH1.00 INCHES NOMINAL IN
COLORRED
SPECIAL FEATURESNYLON KNOB WITH STEEL STUD
WIDTH1.562 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5355 — Knobs and Pointers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5355-00-000-5777 5355-00-001-2029 5355-00-001-2403 5355-00-001-4109 5355-00-001-4677 5355-00-001-4724 5355-00-001-4730 5355-00-001-4734
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7921K21?
7921K21 is a 7921K21.
What is the NSN for 7921K21?
7921K21 is cataloged in the U.S. Government catalog under NSN 5355-01-641-9511. 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.