PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

137443Ref Speciman,aircra

Fleet Readiness Center Southwest · NSN 4920-01-521-1169 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-521-1169 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-521-1169. Primary manufacturer part number: 137443.
Features
  • Ref Speciman,aircra — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Fleet Readiness Center Southwest
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Ref Speciman,aircra, cataloged under National Stock Number 4920-01-521-1169, 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 Fleet Readiness Center Southwest. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-521-1169
Primary Part Number137443
Item NameRef Speciman,aircra
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerFleet Readiness Center Southwest
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-141-0593 INTERCHANGEABLE
Resistor,fixed,composition
5995-00-459-8763137443 INTERCHANGEABLE
Cable Assembly,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
137443 PRIMARY Fleet Readiness Center Southwest (USA)
Related Parts
5905-00-141-0593INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5995-00-459-8763INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
137443

Frequently Asked Questions

What is NSN 4920-01-521-1169?

NSN 4920-01-521-1169 is a Ref Speciman,aircra, manufactured by Fleet Readiness Center Southwest, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-521-1169?

NSN 4920-01-521-1169 has 1 cross-referenced part number: 137443 (Fleet Readiness Center Southwest).

What NSN replaces 4920-01-521-1169?

There are 2 known substitutes for 4920-01-521-1169: 5905-00-141-0593, 5995-00-459-8763. Verify interchangeability with system specifications before substitution.

What are the specifications of 137443?

Key specifications for 137443: End Item Identification: FIGHTER SUPPORT (F/A-18). 1 total characteristics are documented in the Federal Logistics Information System.

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