PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7138Circuit Breaker

Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems · NSN 5925-01-574-4644 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-574-4644 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-574-4644. Primary manufacturer part number: 7138.
Features
  • Circuit Breaker — FSC 5925
  • Supplementary Features: CASE MATERIAL: THERMOSET POLYESTAR; AMPERAGE: 40A A
  • 1 verified cross-reference
  • Primary manufacturer: Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-574-4644, 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 Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-01-574-4644
Primary Part Number7138
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerBlue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems
StatusACTIVE
Supplementary FeaturesCASE MATERIAL: THERMOSET POLYESTAR; AMPERAGE: 40A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4730-00-231-2416 INTERCHANGEABLE
Cap,pipe
4920-00-342-4012 INTERCHANGEABLE
Test Set,indicator
5970-00-498-37407138S INTERCHANGEABLE
Insulator,knob
Knox Porcelain Corp
5995-00-690-65291092846G1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5905-00-935-8542 INTERCHANGEABLE
Resistor,fixed,composition
2920-01-243-631310463072 INTERCHANGEABLE
Generator,engine Accessory
Delco Remy America Inc
5905-01-337-6951796891-3 INTERCHANGEABLE
Resistor Network,fixed,film
Hamilton Sundstrand Corporation Dba Collins Aerospace
5360-01-343-2646SL15019 ITEM 92 INTERCHANGEABLE
Spring,helical,compression
Sss Clutch Co, Inc
6550-01-559-37327138A INTERCHANGEABLE
Culture Medium,hektoen Enteric a
Neogen Corp
Cross-Reference Index
Part NumberManufacturer
7138 Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems (USA)
Related Parts
4730-00-231-2416INTERCHANGEABLE
CAP,PIPE
4920-00-342-4012INTERCHANGEABLE
TEST SET,INDICATOR
5970-00-498-3740INTERCHANGEABLE
INSULATOR,KNOB
7138S
5995-00-690-6529INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1092846G1
5905-00-935-8542INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
2920-01-243-6313INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
10463072
5905-01-337-6951INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
796891-3
5360-01-343-2646INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
SL15019 ITEM 92
6550-01-559-3732INTERCHANGEABLE
CULTURE MEDIUM,HEKTOEN ENTERIC A
7138A

Frequently Asked Questions

What is NSN 5925-01-574-4644?

NSN 5925-01-574-4644 is a Circuit Breaker, manufactured by Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-574-4644?

NSN 5925-01-574-4644 has 1 cross-referenced part number: 7138 (Blue Sea Systems, Inc. Dba Blue Sea Systems Div Blue Sea Systems).

What NSN replaces 5925-01-574-4644?

There are 9 known substitutes for 5925-01-574-4644: 4730-00-231-2416, 4920-00-342-4012, 5970-00-498-3740 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7138?

Key specifications for 7138: Supplementary Features: CASE MATERIAL: THERMOSET POLYESTAR; AMPERAGE: 40A A; Special Features: MAX VOLTAGE RATING: 48VDC; OP TEMP RANGE: -25 TO 82 DEG C; TERMINAL STUD SIZE: 5/16; CIRCUIT BREAKER TYPE: THERMALLY RESPONSIVE BI-METAL BLADE; CIRCUIT BREAKER CLASS: TYPE III-SWITCHABLE/MANUAL RESET-TRIP FREE VDC; Part Name Assigned by Controlling Agency: 187 SERIES THERMAL CIRCUIT BREAKER SURFACE MOUNT. 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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