PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10525Relay,thermal

Custom Metering Company Inc · NSN 5945-00-729-1232 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-729-1232 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-729-1232. Primary manufacturer part number: 10525.
Features
  • Relay,thermal — FSC 5945
  • Overall Diameter: 0.797 INCHES NOMINAL IN
  • Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED
  • Contact Maximum Voltage Rating in Volts: 250.0 AC AND 32.0 DC
  • Terminal Type and Quantity: 4 PIN
  • Heater Power Rating in Watts: 4.0
  • Heater Voltage Rating in Volts: 27.0
  • Environmental Protection: HERMETIC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,thermal, cataloged under National Stock Number 5945-00-729-1232, 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 Custom Metering Company Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN5945-00-729-1232
Primary Part Number10525
Item NameRelay,thermal
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerCustom Metering Company Inc
StatusACTIVE
Overall Diameter0.797 INCHES NOMINAL IN
Contact ArrangementSINGLE POLE, SINGLE THROW, NORMALLY CLOSED
Contact Maximum Voltage Rating in Volts250.0 AC AND 32.0 DC
Terminal Type and Quantity4 PIN
Heater Power Rating in Watts4.0
Heater Voltage Rating in Volts27.0
Environmental ProtectionHERMETIC
Delay Time in Seconds240.0 ADJUSTABLE OPERATE MINIMUM AND 420.0 ADJUSTABLE OPERATE MAXIMUM
Contact Maximum Current Rating in Amps4.0 AC OR 1.0 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-256-11125044 INTERCHANGEABLE
Switch,push-Pull
Cole Hersee Company
5325-00-270-887010525 INTERCHANGEABLE
Grommet,nonmetallic
Clayton Manufacturing Company
4320-00-398-822910525 INTERCHANGEABLE
Ring,wearing
Rps-Fl, Inc. Dba Rps Inc
5985-00-405-756410279265 INTERCHANGEABLE
Dummy Load,electrical
Us Army Aviation and Missile Command
6680-00-886-3605 INTERCHANGEABLE
Transmitter,rate of Flow
5310-00-902-6676MS21083N3 INTERCHANGEABLE
Nut,self-Locking,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5360-01-023-813110525 INTERCHANGEABLE
Spring
Flowserve Corp Dba Automax Actuators Div Flowserve Us Company
5130-01-034-9155105-25 INTERCHANGEABLE
Tool Kit,fastener Removal
Huck International, Inc. Div Kingston Operations
4710-01-177-375210525 INTERCHANGEABLE
Tube,guide Turbine
Abb Inc.
5330-01-301-727410525 INTERCHANGEABLE
Gasket
Aimtron Systems, Llc
Cross-Reference Index
Part NumberManufacturer
10525 Metermaster Inc Metermod Div (USA)
10525 PRIMARY Custom Metering Company Inc (USA)
10525 Trio Laboratories Inc (USA)
Related Parts
5930-00-256-1112INTERCHANGEABLE
SWITCH,PUSH-PULL
5044
5325-00-270-8870INTERCHANGEABLE
GROMMET,NONMETALLIC
10525
4320-00-398-8229INTERCHANGEABLE
RING,WEARING
10525
5985-00-405-7564INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
10279265
6680-00-886-3605INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
5310-00-902-6676INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
MS21083N3
5360-01-023-8131INTERCHANGEABLE
SPRING
10525
5130-01-034-9155INTERCHANGEABLE
TOOL KIT,FASTENER REMOVAL
105-25
4710-01-177-3752INTERCHANGEABLE
TUBE,GUIDE TURBINE
10525
5330-01-301-7274INTERCHANGEABLE
GASKET
10525
9920-01-310-2775INTERCHANGEABLE
ASHTRAY
4030-01-344-5684INTERCHANGEABLE
WEDGE,WIRE ROPE SOCKET
10525

Frequently Asked Questions

What is NSN 5945-00-729-1232?

NSN 5945-00-729-1232 is a Relay,thermal, manufactured by Custom Metering Company Inc, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-729-1232?

NSN 5945-00-729-1232 has 3 cross-referenced part numbers: 10525 (Metermaster Inc Metermod Div), 10525 (Custom Metering Company Inc), 10525 (Trio Laboratories Inc).

What NSN replaces 5945-00-729-1232?

There are 12 known substitutes for 5945-00-729-1232: 5930-00-256-1112, 5325-00-270-8870, 4320-00-398-8229 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10525?

Key specifications for 10525: Overall Diameter: 0.797 INCHES NOMINAL IN; Overall Length: 2.375 INCHES NOMINAL IN; Contact Arrangement: SINGLE POLE, SINGLE THROW, NORMALLY CLOSED; Contact Maximum Voltage Rating in Volts: 250.0 AC AND 32.0 DC. 10 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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