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PartsTable / COMPONENT / 4486-957
4486-957 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The GEAR,HELICAL is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, body_width: 5.500 INCHES NOMINAL IN, body_height: 6.250 INCHES NOMINAL IN, body_length: 6.750 INCHES NOMINAL IN, inclosure_type: HERMETICALLY SEALED, mounting_method: UNTHREADED HOLE(S) SINGLE GROUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-402-4403, 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
4486-957
NSN: 3020-00-402-4403
FSC: 3020
CAGE: 19723 — LOCKHEED ELECTRONICS CO INC INFORMATION ENGINEERING DIV (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
body_width5.500 INCHES NOMINAL IN
body_height6.250 INCHES NOMINAL IN
body_length6.750 INCHES NOMINAL IN
inclosure_typeHERMETICALLY SEALED
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
overall_diameter5.930 INCHES NOMINAL IN
pulse_repetition_rate1.5 KILOHERTZ SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
mounting_hole_diameter0.221 INCHES NOMINAL SINGLE GROUP IN
end_item_identificationSEAWOLF CLASS SSN
impedance_rating_in_ohms400.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
NSN3020-00-402-4403
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available GEAR,HELICAL TITLE COMPONENT PN 4486-957 MFR GEAR,HELICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
36-951Interchangeable
interchangeable cross-reference
interchangeable
23349BInterchangeable
interchangeable cross-reference
interchangeable
23349Interchangeable
interchangeable cross-reference
interchangeable
30075-39235 ITEM 7Interchangeable
interchangeable cross-reference
interchangeable
30075-39235-7Interchangeable
interchangeable cross-reference
interchangeable
AD6-30-2SETSCREWInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4486-957?
4486-957 is a GEAR,HELICAL.
What parts can replace 4486-957?
There are 6 known substitutes for 4486-957: 36-951, 23349B, 23349 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4486-957?
4486-957 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3020-00-402-4403. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026