PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B91.0Relay,thermal

Schneider Electric Usa, Inc. · NSN 5945-00-374-1691 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-374-1691 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-374-1691. Primary manufacturer part number: B91.0.
Features
  • Relay,thermal — FSC 5945
  • 2 verified cross-references
  • Primary manufacturer: Schneider Electric Usa, Inc.
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-374-1691, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Schneider Electric Usa, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameRelay,thermal
FSC / FSG5945 — No Item Name Available (FSG 59)
ManufacturersSchneider Electric Usa, Inc. (CAGE 56365)
Technical Specifications
ParameterValue
NSN5945-00-374-1691
Primary Part NumberB91.0
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerSchneider Electric Usa, Inc.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3030-00-160-8305B91 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
6645-00-487-4978B91 INTERCHANGEABLE
Wheel-Sweep
Power Control Devices Inc
5999-00-735-2205B9.10 INTERCHANGEABLE
Heater,thermal Release
Schneider Electric Usa, Inc.
5365-01-165-2540P791000564 INTERCHANGEABLE
Spacer,sleeve
Argon St, Inc.
6635-01-391-1806B-91 INTERCHANGEABLE
Tensiometer
Loos & Co Inc
5998-01-519-07898527619-115 INTERCHANGEABLE
Circuit Card Assembly
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
B9-1 Schneider Electric Usa, Inc. (USA)
B91.0 PRIMARY Schneider Electric Usa, Inc. (USA)
Related Parts
3030-00-160-8305INTERCHANGEABLE
BELT,V
B91
6645-00-487-4978INTERCHANGEABLE
WHEEL-SWEEP
B91
5999-00-735-2205INTERCHANGEABLE
HEATER,THERMAL RELEASE
B9.10
5365-01-165-2540INTERCHANGEABLE
SPACER,SLEEVE
P791000564
6635-01-391-1806INTERCHANGEABLE
TENSIOMETER
B-91
5998-01-519-0789INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
8527619-115

Frequently Asked Questions

What is NSN 5945-00-374-1691?

NSN 5945-00-374-1691 is a Relay,thermal, manufactured by Schneider Electric Usa, Inc., classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-374-1691?

NSN 5945-00-374-1691 has 2 cross-referenced part numbers: B9-1 (Schneider Electric Usa, Inc.), B91.0 (Schneider Electric Usa, Inc.).

What NSN replaces 5945-00-374-1691?

There are 6 known substitutes for 5945-00-374-1691: 3030-00-160-8305, 6645-00-487-4978, 5999-00-735-2205 and 3 more. Verify interchangeability with system specifications before substitution.

Is NSN 5945-00-374-1691 still in active supply?

NSN 5945-00-374-1691 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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