PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20123Test Program Set

Textron Systems Corporation Dba Textron Systems Corp · NSN 4920-01-300-2018 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-300-2018 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-300-2018. Primary manufacturer part number: 20123.
Features
  • Test Program Set — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Textron Systems Corporation Dba Textron Systems Corp
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Test Program Set, cataloged under National Stock Number 4920-01-300-2018, 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 Textron Systems Corporation Dba Textron Systems Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameTest Program Set
FSC / FSG4920 — No Item Name Available (FSG 49)
ManufacturersTextron Systems Corporation Dba Textron Systems Corp (CAGE 97384)
Technical Specifications
ParameterValue
NSN4920-01-300-2018
Primary Part Number20123
Item NameTest Program Set
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerTextron Systems Corporation Dba Textron Systems Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-043-3931 INTERCHANGEABLE
Gasket
5133-00-228-1372 INTERCHANGEABLE
Drill,twist
6645-00-240-474920123 INTERCHANGEABLE
Stamp,time
Follett Time Recording Co Inc
5330-00-353-097712508 INTERCHANGEABLE
Gasket
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3740-00-425-59985253228 INTERCHANGEABLE
Gun,fog Spray
Durand-Wayland Inc Div John Bean Sprayers
5940-00-998-2801 INTERCHANGEABLE
Terminal Board
6625-01-034-162720123 INTERCHANGEABLE
Monitor,radio Frequency
Telephonics Corp/prd Instruments
5360-01-076-286720-128 INTERCHANGEABLE
Spring
Stewart & Stevenson Power Products Llc
5360-01-224-231820123 INTERCHANGEABLE
Spring,helical,compression
Parker Hannifin Corporation Div Hydraulic Systems Division
6685-01-325-8046LMM38-2002 INTERCHANGEABLE
Pyrometer,indicating
Srm Mfg. Co., Llc Dba Srm Mfg Co
Cross-Reference Index
Part NumberManufacturer
20123 PRIMARY Textron Systems Corporation Dba Textron Systems Corp (USA)
Related Parts
5330-00-043-3931INTERCHANGEABLE
GASKET
5133-00-228-1372INTERCHANGEABLE
DRILL,TWIST
6645-00-240-4749INTERCHANGEABLE
STAMP,TIME
20123
5330-00-353-0977INTERCHANGEABLE
GASKET
12508
3740-00-425-5998INTERCHANGEABLE
GUN,FOG SPRAY
5253228
5940-00-998-2801INTERCHANGEABLE
TERMINAL BOARD
6625-01-034-1627INTERCHANGEABLE
MONITOR,RADIO FREQUENCY
20123
5360-01-076-2867INTERCHANGEABLE
SPRING
20-128
5360-01-224-2318INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
20123
6685-01-325-8046INTERCHANGEABLE
PYROMETER,INDICATING
LMM38-2002
5330-01-354-5870INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
221.20.004.0K
5315-01-369-4454INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS

Frequently Asked Questions

What is NSN 4920-01-300-2018?

NSN 4920-01-300-2018 is a Test Program Set, manufactured by Textron Systems Corporation Dba Textron Systems Corp, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-300-2018?

NSN 4920-01-300-2018 has 1 cross-referenced part number: 20123 (Textron Systems Corporation Dba Textron Systems Corp).

What NSN replaces 4920-01-300-2018?

There are 12 known substitutes for 4920-01-300-2018: 5330-00-043-3931, 5133-00-228-1372, 6645-00-240-4749 and 9 more. Verify interchangeability with system specifications before substitution.

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