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1SR11 — SPROCKET WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

1SR11: SPROCKET WHEEL.

The SPROCKET WHEEL is a the manufacturer industrial component. Key specifications include material: STEEL, bore_type: STRAIGHT, face_width: 0.168 INCHES NOMINAL IN, bore_length: 0.750 INCHES NOMINAL IN, design_form: PLAIN, thread_size: 0.250-20. This part is cataloged in the U.S.

Government catalog under NSN 3020-01-042-0491, 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
1SR11
NSN: 3020-01-042-0491
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL
quantity1
bore_typeSTRAIGHT
face_width0.168 INCHES NOMINAL IN
bore_length0.750 INCHES NOMINAL IN
design_formPLAIN
thread_size0.250-20
tooth_pitch0.375 INCHES NOMINAL IN
keyway_width0.250 INCHES NOMINAL IN
bore_diameter1.000 INCHES NOMINAL IN
hole_locationCENTERED 0.219 IN.FROM END OF HUB,90 DEGS FROM KEYWAY IN
overall_length0.750 INCHES NOMINAL IN
NSN3020-01-042-0491
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPROCKET WHEEL TITLE COMPONENT PN 1SR11 MFR SPROCKET WHEEL
KEY FEATURES
•
HUB OUTSIDE DIAMETER: 1.500 INCHES NOMINAL AA END IN
•
SECURING METHOD: THREADED HOLE(S)
•
BORE LENGTH: 0.750 INCHES NOMINAL IN
•
DESIGN FORM: PLAIN
•
TOOTH PITCH: 0.375 INCHES NOMINAL IN
•
ASA STANDARD CHAIN NUMBER: 35
•
OUTSIDE DIAMETER: 1.990 INCHES NOMINAL IN
•
KEYING FACILITY TYPE: KEYWAY
TECHNICAL CHARACTERISTICS
HUB OUTSIDE DIAMETER1.500 INCHES NOMINAL AA END IN
SECURING METHODTHREADED HOLE(S)
BORE LENGTH0.750 INCHES NOMINAL IN
DESIGN FORMPLAIN
TOOTH PITCH0.375 INCHES NOMINAL IN
ASA STANDARD CHAIN NUMBER35
OUTSIDE DIAMETER1.990 INCHES NOMINAL IN
KEYING FACILITY TYPEKEYWAY
QUANTITY1
STYLE DESIGNATORPLAIN
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 2
RM1-120Reference document
Same NSN cross-reference
Reference document — Secondary reference
RMI-120Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 1SR11?
1SR11 is a SPROCKET WHEEL.
What parts can replace 1SR11?
There are 2 known substitutes for 1SR11: RM1-120, RMI-120. Substitute compatibility should be verified for your specific system.
What is the NSN for 1SR11?
1SR11 is cataloged in the U.S. Government catalog under NSN 3020-01-042-0491. 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.