PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31140Circuit Breaker

Siemens Electric Ltd · NSN 5925-00-949-2966 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-949-2966 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-949-2966. Primary manufacturer part number: 31140.
Features
  • Circuit Breaker — FSC 5925
  • Reset Method: MANUAL
  • Main Contact Tripping Mechanism Type: TRIP FREE
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • 2 verified cross-references
  • Primary manufacturer: Siemens Electric Ltd
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-949-2966, is classified within Federal Supply Class 5925 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Siemens Electric Ltd. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-949-2966
Primary Part Number31140
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerSiemens Electric Ltd
StatusACTIVE
Reset MethodMANUAL
Main Contact Tripping Mechanism TypeTRIP FREE
Storage TypeGENERAL PURPOSE WAREHOUSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4720-00-459-605031140 INTERCHANGEABLE
Hose Assembly,fuel
Dressta North America Ltd
8145-00-510-3818P140 INTERCHANGEABLE
Shipping and Storag
Naval Inventory Control Point
3455-00-517-595215437 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5330-00-730-6884125295 INTERCHANGEABLE
Gasket
Fwd Seagrave Holdings Lp
5133-00-841-862240726 INTERCHANGEABLE
Drill,twist
New York Twist Drill Inc
4820-00-944-876514363NRCPC21 INTERCHANGEABLE
Seat,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
4910-01-121-5943 INTERCHANGEABLE
Feet Set
5342-01-172-632531140 INTERCHANGEABLE
Insert
Unison Industries Llc
5998-01-195-32035487 INTERCHANGEABLE
Circuit Card Assembly
Data Device Corp Dba Beta Transformer Technology
7910-01-420-059156302070 INTERCHANGEABLE
Cleaner,vacuum,electric
Nilfisk, Inc.
Cross-Reference Index
Part NumberManufacturer
31140 PRIMARY Siemens Electric Ltd (CAN)
P140 Siemens Electric Ltd (CAN)
Related Parts
4720-00-459-6050INTERCHANGEABLE
HOSE ASSEMBLY,FUEL
31140
8145-00-510-3818INTERCHANGEABLE
SHIPPING AND STORAG
P140
3455-00-517-5952INTERCHANGEABLE
CUTTER,MILLING,END
15437
5330-00-730-6884INTERCHANGEABLE
GASKET
125295
5133-00-841-8622INTERCHANGEABLE
DRILL,TWIST
40726
4820-00-944-8765INTERCHANGEABLE
SEAT,VALVE
14363NRCPC21
4910-01-121-5943INTERCHANGEABLE
FEET SET
5342-01-172-6325INTERCHANGEABLE
INSERT
31140
5998-01-195-3203INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5487
7910-01-420-0591INTERCHANGEABLE
CLEANER,VACUUM,ELECTRIC
56302070
4320-01-459-4267INTERCHANGEABLE
PUMP,HYDRAULIC RAM,HAND DRIVEN
P140
2910-01-524-2733INTERCHANGEABLE
PUMP,HAND,FUEL PUMP
P-140

Frequently Asked Questions

What is NSN 5925-00-949-2966?

NSN 5925-00-949-2966 is a Circuit Breaker, manufactured by Siemens Electric Ltd, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-949-2966?

NSN 5925-00-949-2966 has 2 cross-referenced part numbers: 31140 (Siemens Electric Ltd), P140 (Siemens Electric Ltd).

What NSN replaces 5925-00-949-2966?

There are 12 known substitutes for 5925-00-949-2966: 4720-00-459-6050, 8145-00-510-3818, 3455-00-517-5952 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31140?

Key specifications for 31140: Reset Method: MANUAL; Main Contact Tripping Mechanism Type: TRIP FREE; Storage Type: GENERAL PURPOSE WAREHOUSE. 3 total characteristics are documented in the Federal Logistics Information System.

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