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Technical Data Sheet
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55257B — Technical Data Sheet

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— · 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

MODIFICATION KIT,SHIPPING AND ST. Key specifications include part_name_assigned_by_controlling_agency: XXL STACK RACK SHELVING SYSTEM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 8145-01-512-0928, 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
55257B
NSN: 8145-01-512-0928
FSC: 8145
CAGE: 1GTL9 — MOBILE SHELTER SYSTEMS USA, INC. DBA SHARKCAGE (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyXXL STACK RACK SHELVING SYSTEM
NSN8145-01-512-0928
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MODIFICATION KIT,SHIPPING AND ST TITLE COMPONENT PN 55257B MFR MODIFICATION KIT,SHIPP
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYXXL STACK RACK SHELVING SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
55257InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
683RH-1/2-1/2SInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SF-16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1A9726InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
643501InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2BL0-1212InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 55257B?
55257B is a MODIFICATION KIT,SHIPPING AND ST.
What parts can replace 55257B?
There are 11 known substitutes for 55257B: 55257, 683RH-1/2-1/2S, SF-16 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 55257B?
55257B is cataloged in the Federal Logistics Information System under NSN 8145-01-512-0928. 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: October 2026