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55740R1 ✓ 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 SHIELD,DUST is a the manufacturer industrial component. Key specifications include color: BLACK SINGLE INDICATOR MARKING, material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, cup_width: 0.6875 INCHES NOMINAL IN, cone_width: 0.8480 INCHES NOMINAL IN, head_style: HEXAGON, head_height: 0.245 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-410-1958, 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
55740R1
NSN: 2530-00-410-1958
FSC: 2530
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
colorBLACK SINGLE INDICATOR MARKING
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
cup_width0.6875 INCHES NOMINAL IN
cone_width0.8480 INCHES NOMINAL IN
head_styleHEXAGON
head_height0.245 INCHES NOMINAL IN
thread_class2A A
actuator_typePUSH BUTTON SINGLE ACTUATOR
bore_diameter0.7500 INCHES NOMINAL IN
document_typeINDUSTRIAL CATALOG
overall_width1.500 INCHES NOMINAL IN
terminal_typeWIRE LEAD
NSN2530-00-410-1958
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHIELD,DUST TITLE COMPONENT PN 55740R1 MFR SHIELD,DUST
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
28402Interchangeable
interchangeable cross-reference
interchangeable
MP200-15Interchangeable
interchangeable cross-reference
interchangeable
2132AInterchangeable
interchangeable cross-reference
interchangeable
0907-09196Interchangeable
interchangeable cross-reference
interchangeable
4L840/2Interchangeable
interchangeable cross-reference
interchangeable
4L840-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55740R1?
55740R1 is a SHIELD,DUST.
What parts can replace 55740R1?
There are 8 known substitutes for 55740R1: 28402, MP200-15, 2132A and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55740R1?
55740R1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-00-410-1958. 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