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PartsTable / COMPONENT / SEP21
SEP21 ✓ 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

HEATING ELEMENT,ELECTRICAL,NONIM. Key specifications include color: WHITE OVERALL, material: GLASS BASIC, nut_style: HEXAGON, reflector: NOT INCLUDED, nut_height: 0.484 INCHES NOMINAL IN, design_type: PUMPER AND RESCUE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-374-2964, 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
SEP21
NSN: 4520-00-374-2964
FSC: 4520
CAGE: 89863 — HUPP INDUSTRIES INC TYPHOON AIR CONDITIONING DIV (USA)
SPECIFICATIONS
colorWHITE OVERALL
materialGLASS BASIC
nut_styleHEXAGON
reflectorNOT INCLUDED
nut_height0.484 INCHES NOMINAL IN
design_typePUMPER AND RESCUE
fork_length40.000 INCHES NOMINAL IN
load_rating4000.000 POUNDS MAXIMUM LBS
thread_class2B
body_diameter4.781 INCHES NOMINAL IN
bore_diameter1.2500 INCHES NOMINAL IN
nominal_width0.375 INCHES IN
NSN4520-00-374-2964
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEATING ELEMENT,ELECTRICAL,NONIM TITLE COMPONENT PN SEP21 MFR HEATING ELEMENT,ELECTR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
P2-1Interchangeable
interchangeable cross-reference
interchangeable
510-0158-12561-152Interchangeable
interchangeable cross-reference
interchangeable
5T558Interchangeable
interchangeable cross-reference
interchangeable
218196Interchangeable
interchangeable cross-reference
interchangeable
NF58T96Interchangeable
interchangeable cross-reference
interchangeable
4CH1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SEP21?
SEP21 is a HEATING ELEMENT,ELECTRICAL,NONIM.
What parts can replace SEP21?
There are 13 known substitutes for SEP21: P2-1, 510-0158-12561-152, 5T558 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SEP21?
SEP21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4520-00-374-2964. 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