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SDM421B — BIT,SCREWDRIVER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

SDM421B: BIT,SCREWDRIVER.

The BIT,SCREWDRIVER is a the manufacturer industrial component. Key specifications include diameter: 0.187 INCHES NOMINAL IN, tip_type: PHILLIPS CROSS, overall_length: 2.75 INCHES NOMINAL IN, special_features: STAINLESS STEAL, end_item_identification: SCREWDRIVER, part_name_assigned_by_controlling_agency: BIT. This part is cataloged in the U.S.

Government catalog under NSN 5120-01-717-3322, 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
SDM421B
NSN: 5120-01-717-3322
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
CAGE: 9CST7 — SNAP-ON INCORPORATED (USA)
SPECIFICATIONS
diameter0.187 INCHES NOMINAL IN
tip_typePHILLIPS CROSS
overall_length2.75 INCHES NOMINAL IN
special_featuresSTAINLESS STEAL
end_item_identificationSCREWDRIVER
part_name_assigned_by_controlling_agencyBIT
NSN5120-01-717-3322
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BIT,SCREWDRIVER TITLE COMPONENT PN SDM421B MFR BIT,SCREWDRIVER
KEY FEATURES
•
DIAMETER: 0.187 INCHES NOMINAL IN
•
TIP TYPE: PHILLIPS CROSS
TECHNICAL CHARACTERISTICS
DIAMETER0.187 INCHES NOMINAL IN
OVERALL LENGTH2.75 INCHES NOMINAL IN
TIP TYPEPHILLIPS CROSS
SPECIAL FEATURESSTAINLESS STEAL
PART NAME ASSIGNED BY CONTROLLING AGENCYBIT
END ITEM IDENTIFICATIONSCREWDRIVER
OTHER ITEMS IN FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642 5120-00-001-2644 5120-00-001-2650 5120-00-001-2651 5120-00-001-2652 5120-00-001-2653 5120-00-001-2654 5120-00-001-2655
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 SDM421B?
SDM421B is a BIT,SCREWDRIVER.
What is the NSN for SDM421B?
SDM421B is cataloged in the U.S. Government catalog under NSN 5120-01-717-3322. 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.