Home · NSN 00-332-9957

NSN 00-332-9957 — Circuit Breaker

NIIN 00-332-9957 · unit of issue EA · AAC Y (terminal item, replaced) · source of supply SMS

NSN 00-332-9957 is the national stock number for a circuit breaker. It cross-references to 7 manufacturer part numbers from 3 CAGE codes, including Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M, Eaton Corp Heinemann Products Commercial Controls Div, Sensata Technologies Maryland, Inc; the primary is AM1-B3-A-3-2. The unit of issue is EA and the FLIS list price is $37.60.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.

part numbers from 3 CAGEs

open solicitations, all agencies

government buys in 24 months

sellers with confirmed stock

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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part number	CAGE	Manufacturer	Reference	Variation
M55629/1-029	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	2 · Item ident. reference	2 · Fully interchangeable
MIL-PRF-55629/1	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	4	1 · Not fully interchangeable
MIL-C-55629/1	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	5 · Secondary reference	9 · Reference only
AM1-B3-A-3-2	74193	Eaton Corp Heinemann Products Commercial Controls Div	C	1 · Not fully interchangeable
AM12M6-3-4	74193	Eaton Corp Heinemann Products Commercial Controls Div	C	1 · Not fully interchangeable
APL-1-1-52-302-M	81541	Sensata Technologies Maryland, Inc	C	1 · Not fully interchangeable
APL1-55629-1-029	81541	Sensata Technologies Maryland, Inc	C	1 · Not fully interchangeable

Government demand

Nothing open right now. Watch this NSN and we will email you when it is solicited.

What the government paid

No government purchase on record for this NSN.

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices.

Sellers with confirmed stock

No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on AM1-B3-A-3-2.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price: $37.60
Unit of issue: EA
Acquisition advice: Y — Terminal item, replaced
Source of supply: SMS
Effective: Oct 1, 2025

Item characteristics

Thread Pitch Diameters: INCHES 0.1177 TO 0.1214
Body Length: INCHES MINIMUM 2.480 AND INCHES MAXIMUM 2.500
Body Width: INCHES MAXIMUM 0.750
Center To Center Distance Between Terminals Parallel To Length: INCHES NOMINAL 1.940
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length: INCHES MINIMUM 2.050 AND INCHES MAXIMUM 2.070
Fragility Factor: MODERATELY RUGGED
Boss Height: INCHES NOMINAL 0.150
Mounting Surface To Terminal End Distance: INCHES NOMINAL 2.475
Pole Quantity: 1
Arc Quenching Method: MAGNETIC BLOWOUT
Mounting Facility Type And Quantity: THREADED HOLE(S) 2
Storage Type: GENERAL PURPOSE WAREHOUSE
Special Handling Feature: MAGNETIC
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: SINGLE LOCATION AMPERES DC 3.0
Operating Voltage Type And Rating Per Pole In Volts: SINGLE LOCATION DC 50.0
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: SINGLE LOCATION DC 5000.0
Circuit Protection Type: SINGLE LOCATION OVERCURRENT
Trip Release Method: SINGLE LOCATION MAGNETIC
Trip Release Characteristic: SINGLE LOCATION TIME DELAY
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 125.0
Reset Method: MANUAL
Main Contact Tripping Mechanism Type: TRIP FREE
Manual Actuator Type And Quantity: TOGGLE 1

Related stock numbers

Other NSNs filed under the same part numbers.

00-035-4126 · Circuit Breaker
00-038-5894 · Circuit Breaker
00-049-2072 · Circuit Breaker
00-107-4230 · Circuit Breaker
00-108-5385 · Circuit Breaker
00-142-0752 · Circuit Breaker
00-161-9167 · Circuit Breaker
00-163-6982 · Circuit Breaker

About this page

An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.