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8909-421-001 — 8909-421-001

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

8909-421-001: 8909-421-001.

The 8909-421-001 is a the manufacturer industrial component. Key specifications include material: STEEL, inside_diameter: 0.375 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES NOMINAL IN, style_designator: ROUND, attachment_method: SCREW ON, overall_thickness: 1.130 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5355-01-378-7971, 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
8909-421-001
NSN: 5355-01-378-7971
FSC: 5355 — Knobs and Pointers
CAGE: 20722 — THE ENTWISTLE COMPANY LLC (USA)
SPECIFICATIONS
materialSTEEL
inside_diameter0.375 INCHES NOMINAL IN
outside_diameter1.250 INCHES NOMINAL IN
style_designatorROUND
attachment_methodSCREW ON
overall_thickness1.130 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES SCREW HOLE IN
thread_quantity_per_inch16 SCREW HOLE
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
shaft_accommodation_styleROUND
gripping_surface_conditionGRIP AID
NSN5355-01-378-7971
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 8909-421-001 TITLE COMPONENT PN 8909-421-001 MFR 8909-421-001
KEY FEATURES
•
SHAFT ACCOMMODATION STYLE: ROUND
•
OVERALL THICKNESS: 1.130 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND
•
OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.375 INCHES SCREW HOLE IN
•
INSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
GRIPPING SURFACE CONDITION: GRIP AID
•
THREAD QUANTITY PER INCH: 16 SCREW HOLE
TECHNICAL CHARACTERISTICS
SHAFT ACCOMMODATION STYLEROUND
OVERALL THICKNESS1.130 INCHES NOMINAL IN
STYLE DESIGNATORROUND
OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES SCREW HOLE IN
INSIDE DIAMETER0.375 INCHES NOMINAL IN
GRIPPING SURFACE CONDITIONGRIP AID
THREAD QUANTITY PER INCH16 SCREW HOLE
MATERIALSTEEL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8909-421-001?
8909-421-001 is a 8909-421-001.
What is the NSN for 8909-421-001?
8909-421-001 is cataloged in the U.S. Government catalog under NSN 5355-01-378-7971. 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.