PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

20545Smart Test Set

Name: 20545
SKU: 4920-01-201-9770

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 4920-01-201-9770 · FSC 4920 · No Item Name Available

Verified by PartsTable

NSN 4920-01-201-9770 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-201-9770. Primary manufacturer part number: 20545.

4920-01-201-9770 — No Item Name Available illustration

Features

Smart Test Set — FSC 4920
1 verified cross-reference
Primary manufacturer: Smiths Aerospace, Inc., Electronic Systems-Grand Rapids

Applications

Maintenance depot operations
Field repair and servicing
Vehicle maintenance facilities

General Description

The Smart Test Set, cataloged under National Stock Number 4920-01-201-9770, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Smart Test Set
FSC / FSG	4920 — No Item Name Available (FSG 49)
Manufacturers	Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (CAGE 30377)

Technical Specifications

Parameter	Value
NSN	4920-01-201-9770
Primary Part Number	20545
Item Name	Smart Test Set
FSC / FSG	4920 / 49 — No Item Name Available
Manufacturer	Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 8

5310-00-264-1382390012PC545 INTERCHANGEABLE

Nut,self-Locking,cone Seat,hexag

Naval Ship Systems Command

5315-00-290-916720545 INTERCHANGEABLE

Pin,cotter

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.

5950-00-919-7677 INTERCHANGEABLE

Transformer,audio Frequency

5360-01-145-1577 INTERCHANGEABLE

Spring,helical,compression

5998-01-181-346020545 INTERCHANGEABLE

Printed Circuit Board

Basic American Inc

5330-01-358-95794615SHD2500 INTERCHANGEABLE

Ring,wiper

Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)

3040-01-631-8742 INTERCHANGEABLE

Connecting Link,rigid

4940-01-664-610020545 INTERCHANGEABLE

Cleaner,pressure,solvent-Water

Briggs and Stratton Corp

Cross-Reference Index

Part Number	Manufacturer
20545 PRIMARY	Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)

Related Parts

5310-00-264-1382INTERCHANGEABLE

NUT,SELF-LOCKING,CONE SEAT,HEXAG

390012PC545

5315-00-290-9167INTERCHANGEABLE

PIN,COTTER

20545

5950-00-919-7677INTERCHANGEABLE

TRANSFORMER,AUDIO FREQUENCY

5360-01-145-1577INTERCHANGEABLE

SPRING,HELICAL,COMPRESSION

5998-01-181-3460INTERCHANGEABLE

PRINTED CIRCUIT BOARD

20545

5330-01-358-9579INTERCHANGEABLE

RING,WIPER

4615SHD2500

3040-01-631-8742INTERCHANGEABLE

CONNECTING LINK,RIGID

4940-01-664-6100INTERCHANGEABLE

CLEANER,PRESSURE,SOLVENT-WATER

20545

Frequently Asked Questions

What is NSN 4920-01-201-9770?

NSN 4920-01-201-9770 is a Smart Test Set, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-201-9770?

NSN 4920-01-201-9770 has 1 cross-referenced part number: 20545 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 4920-01-201-9770?

There are 8 known substitutes for 4920-01-201-9770: 5310-00-264-1382, 5315-00-290-9167, 5950-00-919-7677 and 5 more. Verify interchangeability with system specifications before substitution.

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

PartsTable Design LLC · partstable.com