Home · NSN 01-257-9287

NSN 01-257-9287 — Transformer,Power

NIIN 01-257-9287 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

NSN 01-257-9287 is the national stock number for a transformer,power. It cross-references to 3 manufacturer part numbers from 3 CAGE codes, including Northrop Grumman Systems Corporation, L3harris Maritime Power & Energy Solutions, Inc., Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M; the primary is 245B955H01. The unit of issue is EA and the FLIS list price is $3,207.98.

No government purchase of this stock number is on our record yet. No seller has confirmed stock of it here in the last 30 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
245B955H01	97942	Northrop Grumman Systems Corporation	3 · Design control (vendor)	2 · Fully interchangeable
740102PC95	30086	L3harris Maritime Power & Energy Solutions, Inc.	3 · Design control (vendor)	2 · Fully interchangeable
TF4SX02YY	81349	Military Specifications Promulgated By Military Departments/Agencies Under Authority Of Defense Standardization Manual 4120 3-M	4	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 245B955H01.

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

DLA management data

FLIS unit price: $3,207.98
Unit of issue: EA
Acquisition advice: Z — Insurance item
Source of supply: SMS
Effective: Oct 1, 2026

Item characteristics

Reliability Indicator: NOT ESTABLISHED
Overall Length: INCHES NOMINAL 3.720
Center To Center Distance Between Mounting Facilities Parallel To Length: ALL MOUNTING FACILITIES SINGLE CENTER GROUP INCHES NOMINAL 2.880
Center To Center Distance Between Mounting Facilities Parallel To Width: ALL MOUNTING FACILITIES SINGLE CENTER GROUP INCHES NOMINAL 1.630
Overall Height: INCHES NOMINAL 3.590
Overall Width: INCHES NOMINAL 2.470
Mounting Hole Diameter: SECOND GROUP INCHES NOMINAL 0.201
Frequency Rating: SINGLE COMPONENT HERTZ NOMINAL 400.0
Input-Output Phase Relationship: SINGLE COMPONENT THREE PHASE TO THREE PHASE
Inclosure Type: FULLY INCLOSED
Mounting Facility Quantity: 4
Mounting Method: SECOND GROUP UNTHREADED HOLE(S)
Mounting Method: FIRST GROUP THREADED STUD(S)
Winding Function And Quantity: SINGLE COMPONENT PRIMARY 1 AND SECONDARY 2
Nominal Thread Size: FIRST GROUP INCHES 0.164
Winding Operating Current: SINGLE COMPONENT THIRD SECONDARY AMPERES AC MAXIMUM 0.53
Winding Operating Current: SINGLE COMPONENT SECOND SECONDARY AMPERES AC MAXIMUM 0.53
Winding Operating Current: SINGLE COMPONENT FIRST SECONDARY AMPERES AC MAXIMUM 0.9
Winding Operating Voltage: SINGLE COMPONENT FIRST SECONDARY AC VOLTS MINIMUM 21.50 AND AC VOLTS MAXIMUM 23.00
Winding Operating Voltage: SINGLE COMPONENT SINGLE PRIMARY AC VOLTS NOMINAL 200.00
Winding Operating Voltage: SINGLE COMPONENT SECOND SECONDARY AC VOLTS NOMINAL 28.30
Thread Series Designator: FIRST GROUP UNIFIED NATIONAL COARSE (UNC)
Terminal Type And Quantity: THREADED STUD 12

Related stock numbers

Other NSNs filed under the same part numbers.

00-061-2695 · Transformer,Power

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.