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SDM521A — BIT,SCREWDRIVER

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

SDM521A: BIT,SCREWDRIVER.

The BIT,SCREWDRIVER is a the manufacturer industrial component. Key specifications include tip_type: PHILLIPS CROSS, overall_length: 3.500 INCHES NOMINAL IN, shank_diameter: 0.188 INCHES NOMINAL IN, drive_shank_type: HEXAGON, features_provided: POWER TOOL, shank_width_across_wrench_flats: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5130-01-655-6362, 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
SDM521A
NSN: 5130-01-655-6362
FSC: 5130 — Hand Tools, Power Driven
CAGE: 55719 — IDSC HOLDINGS LLC DIV SNAP-ON INDUSTRIAL, A DIV. OF IDSC HOLDINGS , LLC (USA)
SPECIFICATIONS
tip_typePHILLIPS CROSS
overall_length3.500 INCHES NOMINAL IN
shank_diameter0.188 INCHES NOMINAL IN
drive_shank_typeHEXAGON
features_providedPOWER TOOL
tip_size_designation1
shank_width_across_wrench_flats0.250 INCHES NOMINAL IN
NSN5130-01-655-6362
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BIT,SCREWDRIVER TITLE COMPONENT PN SDM521A MFR BIT,SCREWDRIVER
KEY FEATURES
•
TIP SIZE DESIGNATION: 1
•
SHANK DIAMETER: 0.188 INCHES NOMINAL IN
•
DRIVE SHANK TYPE: HEXAGON
•
SHANK WIDTH ACROSS WRENCH FLATS: 0.250 INCHES NOMINAL IN
•
FEATURES PROVIDED: POWER TOOL
•
TIP TYPE: PHILLIPS CROSS
TECHNICAL CHARACTERISTICS
TIP SIZE DESIGNATION1
SHANK DIAMETER0.188 INCHES NOMINAL IN
DRIVE SHANK TYPEHEXAGON
OVERALL LENGTH3.500 INCHES NOMINAL IN
SHANK WIDTH ACROSS WRENCH FLATS0.250 INCHES NOMINAL IN
FEATURES PROVIDEDPOWER TOOL
TIP TYPEPHILLIPS CROSS
OTHER ITEMS IN FSC 5130 — Hand Tools, Power Driven
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5130-00-001-1299 5130-00-001-2671 5130-00-001-2685 5130-00-001-2687 5130-00-001-6357 5130-00-001-7046 5130-00-004-6410 5130-00-004-6772
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 SDM521A?
SDM521A is a BIT,SCREWDRIVER.
What is the NSN for SDM521A?
SDM521A is cataloged in the U.S. Government catalog under NSN 5130-01-655-6362. 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.