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40978 ✓ 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 CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: IRON, special_features: INCLUDES ONE BEARING AND ONE SEAL, engine_design_control_activity: 12204, engine_model_number_for_which_designed: H225. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-00-388-9179, 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
40978
NSN: 4240-00-388-9179
FSC: 4240
CAGE: 63984 — SQUARE D CO MONROE PLANT (USA)
SPECIFICATIONS
materialIRON
special_featuresINCLUDES ONE BEARING AND ONE SEAL
engine_design_control_activity12204
engine_model_number_for_which_designedH225
NSN4240-00-388-9179
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CONNECTOR,PLUG,ELECTRICAL TITLE COMPONENT PN 40978 MFR CONNECTOR,PLUG,ELECTRI
KEY FEATURES
•
MATERIAL: PLASTIC FRAME
•
LENS POLARIZATION FEATURE: NOT INCLUDED
•
CARRYING CASE: NOT PROVIDED
•
LENS COLOR: GREEN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES0.050 IN. THK LENS; MEET REQUIREMENTS OF ANSI Z87.1-1968; SUPPORT METHOD: HEADBAND; FRAME VENTILATION FEATURE INCLUDED IN
MATERIALPLASTIC FRAME
LENS POLARIZATION FEATURENOT INCLUDED
CARRYING CASENOT PROVIDED
MATERIALPLASTIC LENS
LENS COLORGREEN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
FBL00-089Interchangeable
interchangeable cross-reference
interchangeable
710BInterchangeable
interchangeable cross-reference
interchangeable
AS4283Interchangeable
interchangeable cross-reference
interchangeable
10-935Interchangeable
interchangeable cross-reference
interchangeable
B107.10Interchangeable
interchangeable cross-reference
interchangeable
710AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40978?
40978 is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace 40978?
There are 14 known substitutes for 40978: FBL00-089, 710B, AS4283 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40978?
40978 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4240-00-388-9179. 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