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Technical Data Sheet

21787 — Technical Data Sheet

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Leitz · MRO · MRO_GENERAL
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 BATTERY,NONRECHARGEABLE is a Leitz cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include shape: RECTANGULAR, length: 0.979 INCHES NOMINAL IN, diameter: 2.000 INCHES NOMINAL IN, material: STEEL COMP 303 OVERALL, cut_depth: 0.750 INCHES NOMINAL IN, body_style: HOLE MOUNTED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3455-00-203-9889, 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
MRO→ MRO_GENERAL→ 21787
NSN: 3455-00-203-9889
FSC: 3455
CAGE: 07429 — BLACK AND DECKER US INC (USA)
SPECIFICATIONS
shapeRECTANGULAR
length0.979 INCHES NOMINAL IN
diameter2.000 INCHES NOMINAL IN
materialSTEEL COMP 303 OVERALL
cut_depth0.750 INCHES NOMINAL IN
body_styleHOLE MOUNTED
inscriptionLOW AND RESERVOIR AND LEVEL FACE
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
overall_width0.594 INCHES NOMINAL IN
thread_length0.979 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
inclosure_typeFULLY INCLOSED
overall_height0.250 INCHES NOMINAL IN
NSN3455-00-203-9889
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Leitz BATTERY,NONRECHARGEABLE TITLE COMPONENT PN 21787 MFR Leitz BATTERY,NONRECHARGEABL
KEY FEATURES
•
MATERIAL: STEEL
•
TEETH QUANTITY PER UNIT OF MEASURE: 6 PER INCH
•
DIAMETER: 2.000 INCHES NOMINAL IN
•
CUT DEPTH: 0.750 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS
MATERIALSTEEL
TEETH QUANTITY PER UNIT OF MEASURE6 PER INCH
DIAMETER2.000 INCHES NOMINAL IN
CUT DEPTH0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AML51-F20AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5120PL0842886InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
J21787InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6515NCM116014InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11141-000100InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3034609InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21787?
21787 is a BATTERY,NONRECHARGEABLE manufactured by Leitz. It is classified as a MRO (MRO_GENERAL).
What parts can replace 21787?
There are 8 known substitutes for 21787: AML51-F20A, 5120PL0842886, J21787 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21787?
21787 is cataloged in the Federal Logistics Information System under NSN 3455-00-203-9889. This indicates validated use in U.S. government and defense supply chains.
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