PartsTable
Technical Data Sheet
Download PDF

B-178-A — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B-178-A: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, duty_type: CONTINUOUS, body_style: GROOVED, corner_shape: SQUARE ALL CORNERS, groove_depth: 0.313 INCHES NOMINAL IN, groove_width: 0.078 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-879-1618, 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
B-178-A
NSN: 4320-00-879-1618
NIINs: 008791618, 009628602
FSC: 4320 — Power and Hand Pumps
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
duty_typeCONTINUOUS
body_styleGROOVED
corner_shapeSQUARE ALL CORNERS
groove_depth0.313 INCHES NOMINAL IN
groove_width0.078 INCHES NOMINAL IN
coil_quantity1
overall_width3.560 INCHES NOMINAL IN
overall_height3.250 INCHES NOMINAL IN
overall_length5.187 INCHES NOMINAL IN
groove_quantity3
winding_quantity1
NSN4320-00-879-1618
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN B-178-A MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY STYLE: GROOVED
•
BODY OUTSIDE DIAMETER: 5.750 INCHES NOMINAL IN
•
GROOVE DEPTH: 0.313 INCHES NOMINAL IN
•
DISTANCE FROM END TO GROOVE CENTER: 0.109 INCHES NOMINAL IN
•
GROOVE QUANTITY: 3
•
BODY INSIDE DIAMETER: 5.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY STYLEGROOVED
BODY OUTSIDE DIAMETER5.750 INCHES NOMINAL IN
OVERALL LENGTH0.672 INCHES NOMINAL IN
GROOVE DEPTH0.313 INCHES NOMINAL IN
DISTANCE FROM END TO GROOVE CENTER0.109 INCHES NOMINAL IN
GROOVE QUANTITY3
BODY INSIDE DIAMETER5.250 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
GROOVE WIDTH0.078 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy B-178-A?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is B-178-A?
B-178-A is a RELAY,ELECTROMAGNETIC.
What is the NSN for B-178-A?
B-178-A is cataloged in the U.S. Government catalog under NSN 4320-00-879-1618. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — B-178-A

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.