PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91839Test Program Set

Textron Systems Corporation Dba Textron Systems Corp · NSN 4920-01-299-5209 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-299-5209 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-299-5209. Primary manufacturer part number: 91839.
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 4920-01-299-5209, 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. 3 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
NSN4920-01-299-5209
Primary Part Number91839
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 3
5133-00-189-9284 INTERCHANGEABLE
Drill,twist
5935-00-199-668391-839 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corp Div Amphenol Aerospace Operations
5331-01-246-962391839 INTERCHANGEABLE
O-Ring
Bauer Equipment America, Inc.
Cross-Reference Index
Part NumberManufacturer
91839 PRIMARY Textron Systems Corporation Dba Textron Systems Corp (USA)
Related Parts
5133-00-189-9284INTERCHANGEABLE
DRILL,TWIST
5935-00-199-6683INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
91-839
5331-01-246-9623INTERCHANGEABLE
O-RING
91839

Frequently Asked Questions

What is NSN 4920-01-299-5209?

NSN 4920-01-299-5209 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 4920-01-299-5209?

NSN 4920-01-299-5209 has 1 cross-referenced part number: 91839 (Textron Systems Corporation Dba Textron Systems Corp).

What NSN replaces 4920-01-299-5209?

There are 3 known substitutes for 4920-01-299-5209: 5133-00-189-9284, 5935-00-199-6683, 5331-01-246-9623. Verify interchangeability with system specifications before substitution.

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