PartsTable
Technical Data Sheet
PartsTable / COMPONENT / PX-21 RED
PX-21 RED ✓ 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 BATTERY,NONRECHARGEABLE is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include tip_type: FINE, feed_type: CAPILLARY, ink_color: RED, pocket_clip: NOT PROVIDED, special_features: QUICK-DRYING OIL BASE PAINT,MARKSOPAQUE AND GLOSSY ON ALMOST ANY SURFA C. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7520-01-238-8042, 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
PX-21 RED
NSN: 7520-01-238-8042
FSC: 7520
CAGE: 0X226 — EBERHARD FABER INC (USA)
SPECIFICATIONS
tip_typeFINE
feed_typeCAPILLARY
ink_colorRED
pocket_clipNOT PROVIDED
special_featuresQUICK-DRYING OIL BASE PAINT,MARKSOPAQUE AND GLOSSY ON ALMOST ANY SURFA C
NSN7520-01-238-8042
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,NONRECHARGEABLE TITLE COMPONENT PN PX-21 RED MFR BATTERY,NONRECHARGEABL
KEY FEATURES
•
POCKET CLIP: NOT PROVIDED
•
FEED TYPE: CAPILLARY
•
TIP TYPE: FINE
•
INK COLOR: RED
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 (FLIS)
SPECIAL FEATURESQUICK-DRYING OIL BASE PAINT,MARKSOPAQUE AND GLOSSY ON ALMOST ANY SURFA C
POCKET CLIPNOT PROVIDED
FEED TYPECAPILLARY
TIP TYPEFINE
INK COLORRED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
Q/E2BP/R1019 POS. 021Interchangeable
interchangeable cross-reference
interchangeable
APX21Interchangeable
interchangeable cross-reference
interchangeable
056056Interchangeable
interchangeable cross-reference
interchangeable
078-00034-19Interchangeable
interchangeable cross-reference
interchangeable
001267TInterchangeable
interchangeable cross-reference
interchangeable
63702Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PX-21 RED?
PX-21 RED is a BATTERY,NONRECHARGEABLE.
What parts can replace PX-21 RED?
There are 16 known substitutes for PX-21 RED: Q/E2BP/R1019 POS. 021, APX21, 056056 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PX-21 RED?
PX-21 RED is cataloged in the Federal Logistics Information System (FLIS) under NSN 7520-01-238-8042. 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