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Technical Data Sheet
PartsTable / COMPONENT / 81978B5
81978B5 ✓ 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 81978B5 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-239-5697, 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
81978B5
NSN: 6685-00-239-5697
FSC: 6685
CAGE: 80411 — ROBERTSHAW CONTROLS CO NEW STANTON DIV (USA)
SPECIFICATIONS
Part Number81978B5
NSN6685-00-239-5697
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 81978B5 TITLE COMPONENT PN 81978B5 MFR 81978B5
KEY FEATURES
•
MATERIAL: BRONZE ACTUATING ELEMENT
•
SURFACE TREATMENT: ENAMEL CASE
•
ADJUSTABILITY: ADJUSTABLE
•
MOUNTING CONNECTION LOCATION: BOTTOM
•
CONNECTION TYPE: EXTERNAL
•
GRADUATION UNIT: 40.0 POUNDS PER SQUARE INCH LBS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALBRONZE ACTUATING ELEMENT
SURFACE TREATMENTENAMEL CASE
MATERIALGLASS PROTECTIVE CRYSTAL
OVERALL DEPTH1.130 INCHES NOMINAL IN
ADJUSTABILITYADJUSTABLE
MOUNTING CONNECTION LOCATIONBOTTOM
CONNECTION TYPEEXTERNAL
GRADUATION UNIT40.0 POUNDS PER SQUARE INCH LBS
POINTER TYPEINDICATING
SCALE INSCRIPTION/BACKGROUND COLORBLACK FIGURES ON WHITE BACKGROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
32498Interchangeable
interchangeable cross-reference
interchangeable
C71Interchangeable
interchangeable cross-reference
interchangeable
2533406-30Interchangeable
interchangeable cross-reference
interchangeable
BT444Interchangeable
interchangeable cross-reference
interchangeable
042893Interchangeable
interchangeable cross-reference
interchangeable
675234Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81978B5?
81978B5 is a 81978B5.
What parts can replace 81978B5?
There are 29 known substitutes for 81978B5: 32498, C71, 2533406-30 and 26 more. Substitute compatibility should be verified for your specific system.
Is 81978B5 still available?
81978B5 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026