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PartsTable / COMPONENT / 57028
57028 ✓ 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 INSERT,FLEXIBLE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, long_arm_length: 3.750 INCHES NOMINAL IN, short_arm_length: 1.250 INCHES NOMINAL IN, style_designator: L-HANDLE, features_provided: SHORT SERIES, surface_treatment: OXIDE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1630-00-180-5126, 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
57028
NSN: 1630-00-180-5126
FSC: 1630
CAGE: 34317 — SERVAL AVIATION INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
long_arm_length3.750 INCHES NOMINAL IN
short_arm_length1.250 INCHES NOMINAL IN
style_designatorL-HANDLE
features_providedSHORT SERIES
surface_treatmentOXIDE OVERALL
wrenching_surface_size0.313 INCHES NOMINAL BOTH ENDS IN
wrenching_surface_shapeHEXAGON BOTH ENDS EXTERNAL
specification/standard_data05047-ASME B18.3 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN1630-00-180-5126
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSERT,FLEXIBLE COUPLING TITLE COMPONENT PN 57028 MFR INSERT,FLEXIBLE COUPLI
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: ALUMINUM ALLOY,SHOE TYPE TRIANGLE
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONALUMINUM ALLOY,SHOE TYPE TRIANGLE
END ITEM IDENTIFICATIONAIRCRAFT MODEL C-47
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
57028Interchangeable
interchangeable cross-reference
interchangeable
C9640-11Interchangeable
interchangeable cross-reference
interchangeable
68013Interchangeable
interchangeable cross-reference
interchangeable
B18.3Interchangeable
interchangeable cross-reference
interchangeable
5701310Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57028?
57028 is a INSERT,FLEXIBLE COUPLING.
What parts can replace 57028?
There are 5 known substitutes for 57028: 57028, C9640-11, 68013 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 57028?
57028 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1630-00-180-5126. 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