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3021137-1 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3021137-1: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, bore_type: STRAIGHT, face_width: 0.459 INCHES NOMINAL IN, bore_length: 1.250 INCHES NOMINAL IN, design_form: PLAIN, tooth_pitch: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-026-4021, 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
3021137-1
NSN: 3020-01-026-4021
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
quantity1
bore_typeSTRAIGHT
face_width0.459 INCHES NOMINAL IN
bore_length1.250 INCHES NOMINAL IN
design_formPLAIN
tooth_pitch0.750 INCHES NOMINAL IN
keyway_width0.500 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
bore_diameter1.750 INCHES MINIMUM IN
overall_length1.250 INCHES NOMINAL IN
pitch_diameter3.607 INCHES NOMINAL IN
furnished_itemsKEYING FACILITY
NSN3020-01-026-4021
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN 3021137-1 MFR SPROCKET WHEEL
KEY FEATURES
•
HUB OUTSIDE DIAMETER: 2.750 INCHES NOMINAL AA END IN
•
SECURING METHOD: KEY
•
BORE LENGTH: 1.250 INCHES NOMINAL IN
•
DESIGN FORM: PLAIN
•
TEETH HARDNESS RATING: 25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
•
TOOTH PITCH: 0.750 INCHES NOMINAL IN
•
ASA STANDARD CHAIN NUMBER: 60
•
OUTSIDE DIAMETER: 3.979 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HUB OUTSIDE DIAMETER2.750 INCHES NOMINAL AA END IN
SECURING METHODKEY
BORE LENGTH1.250 INCHES NOMINAL IN
DESIGN FORMPLAIN
TEETH HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM
TOOTH PITCH0.750 INCHES NOMINAL IN
ASA STANDARD CHAIN NUMBER60
OUTSIDE DIAMETER3.979 INCHES NOMINAL IN
KEYING FACILITY TYPEKEYWAY
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3021137-1?
3021137-1 is a SPROCKET WHEEL.
What is the NSN for 3021137-1?
3021137-1 is cataloged in the U.S. Government catalog under NSN 3020-01-026-4021. 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.