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157D3321 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

157D3321: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: STRAIGHT SPLINE, face_width: 0.200 INCHES NOMINAL IN, design_form: SPOKED, tooth_pitch: 32.000 INCHES NOMINAL IN, spline_length: 0.680 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-327-3885, 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
157D3321
NSN: 3020-01-327-3885
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL
bore_typeSTRAIGHT SPLINE
face_width0.200 INCHES NOMINAL IN
design_formSPOKED
tooth_pitch32.000 INCHES NOMINAL IN
spline_length0.680 INCHES NOMINAL IN
overall_length0.680 INCHES NOMINAL IN
spline_quantity15
style_designatorPLAIN
teeth_row_quantity1
hub_outside_diameter0.840 INCHES NOMINAL AA END IN
spline_major_diameter0.662 INCHES NOMINAL IN
NSN3020-01-327-3885
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN 157D3321 MFR SPROCKET WHEEL
KEY FEATURES
•
SPLINE MINOR DIAMETER: 0.563 INCHES NOMINAL IN
•
HUB OUTSIDE DIAMETER: 0.840 INCHES NOMINAL AA END IN
•
DESIGN FORM: SPOKED
•
TOOTH PITCH: 32.000 INCHES NOMINAL IN
•
SPLINE LENGTH: 0.680 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLAIN
•
SPLINE MAJOR DIAMETER: 0.662 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPLINE MINOR DIAMETER0.563 INCHES NOMINAL IN
HUB OUTSIDE DIAMETER0.840 INCHES NOMINAL AA END IN
DESIGN FORMSPOKED
TOOTH PITCH32.000 INCHES NOMINAL IN
SPLINE LENGTH0.680 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
OVERALL LENGTH0.680 INCHES NOMINAL IN
SPLINE MAJOR DIAMETER0.662 INCHES NOMINAL IN
BORE TYPESTRAIGHT SPLINE
TEETH ROW QUANTITY1
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: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 157D3321?
157D3321 is a SPROCKET WHEEL.
What is the NSN for 157D3321?
157D3321 is cataloged in the U.S. Government catalog under NSN 3020-01-327-3885. 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.