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Technical Data Sheet
PartsTable / COMPONENT / BL-4
BL-4 ✓ Verified by PartsTable
Middle Atlantic Products · 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

Blank panels with a black brushed and anodized finish<br><br>The most aesthetic blank panels available with a black brushed and anodized finish. Complements RSH4A custom rackshelves and other anodized accessories. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-225-5389, 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
BL-4
NSN: 5120-01-225-5389
FSC: 5120
CAGE: 31734 — BONDHUS CORP (USA)
SPECIFICATIONS
phaseTHREE
materialPLASTIC
current_typeAC
inside_depth30.000 INCHES NOMINAL IN
inside_width15.000 INCHES NOMINAL IN
inside_height12.000 INCHES NOMINAL IN
mounting_typeFLOOR
overall_length110.0 MILLIMETERS NOMINAL MM
special_featuresCOMPLETE WITH DIGITAL CONTROLLER, AUTO SWITCH, FUSE DISCONNECT; 4920011394547
style_designatorL-HANDLE
voltage_in_volts230.0
features_providedBALL END
NSN5120-01-225-5389
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Middle Atlantic Products FURNACE,HEAT TREATING,ELECTRIC TITLE COMPONENT PN BL-4 MFR Middle Atlantic Products FURNACE,HEAT TREATING,
KEY FEATURES
•
STYLE DESIGNATOR: L-HANDLE
•
WRENCHING SURFACE SIZE: 4.0 MILLIMETERS NOMINAL BOTH ENDS MM
•
FEATURES PROVIDED: BALL END
•
SURFACE TREATMENT: OXIDE OVERALL
•
WRENCHING SURFACE SHAPE: HEXAGON BOTH ENDS EXTERNAL
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH110.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATORL-HANDLE
WRENCHING SURFACE SIZE4.0 MILLIMETERS NOMINAL BOTH ENDS MM
FEATURES PROVIDEDBALL END
SURFACE TREATMENTOXIDE OVERALL
WRENCHING SURFACE SHAPEHEXAGON BOTH ENDS EXTERNAL
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AYRF46Interchangeable
interchangeable cross-reference
interchangeable
N1500-15CDInterchangeable
interchangeable cross-reference
interchangeable
10960Interchangeable
interchangeable cross-reference
interchangeable
129336Interchangeable
interchangeable cross-reference
interchangeable
600Interchangeable
interchangeable cross-reference
interchangeable
83S2783Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BL-4?
BL-4 is a FURNACE,HEAT TREATING,ELECTRIC manufactured by Middle Atlantic Products.
What parts can replace BL-4?
There are 15 known substitutes for BL-4: AYRF46, N1500-15CD, 10960 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BL-4?
BL-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-225-5389. 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