PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

521-15Test Adapter,cap

Aar Brooks and Perkins Corp Aeronetics Div · NSN 4920-01-041-5811 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-041-5811 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-041-5811. Primary manufacturer part number: 521-15.
Features
  • Test Adapter,cap — FSC 4920
  • 1 verified cross-reference
  • Primary manufacturer: Aar Brooks and Perkins Corp Aeronetics Div
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Test Adapter,cap, cataloged under National Stock Number 4920-01-041-5811, 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 Aar Brooks and Perkins Corp Aeronetics Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-041-5811
Primary Part Number521-15
Item NameTest Adapter,cap
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerAar Brooks and Perkins Corp Aeronetics Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
1620-00-020-26605211-5 INTERCHANGEABLE
Piston,drag Strut
Goodrich Aerospace Canada Ltd
2910-00-057-142114776 INTERCHANGEABLE
Filter Element,fluid
Westerbeke Corporation
4730-00-142-178252115 INTERCHANGEABLE
Plug,pipe
Hamilton Sundstrand Corporation Dba Collins Aerospace
5950-00-453-5092 INTERCHANGEABLE
Transformer,audio Frequency
5905-00-544-25985211-5 INTERCHANGEABLE
Resistor,fixed,wire Wound
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
3950-00-663-530652115 INTERCHANGEABLE
Winch,drum,power Operated
Lake Shore Systems, Inc.
5985-00-672-639952115 INTERCHANGEABLE
Waveguide Assembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5210-01-011-3886440Z-3RL INTERCHANGEABLE
Gage,depth,micrometer
L.s. Starrett Company (the) Div Tool Division
5920-01-447-9908 INTERCHANGEABLE
Fuse,cartridge
Cross-Reference Index
Part NumberManufacturer
521-15 Aar Brooks and Perkins Corp Aeronetics Div (USA)
Related Parts
1620-00-020-2660INTERCHANGEABLE
PISTON,DRAG STRUT
5211-5
2910-00-057-1421INTERCHANGEABLE
FILTER ELEMENT,FLUID
14776
4730-00-142-1782INTERCHANGEABLE
PLUG,PIPE
52115
5950-00-453-5092INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5905-00-544-2598INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5211-5
3950-00-663-5306INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
52115
5985-00-672-6399INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
52115
5210-01-011-3886INTERCHANGEABLE
GAGE,DEPTH,MICROMETER
440Z-3RL
5920-01-447-9908INTERCHANGEABLE
FUSE,CARTRIDGE

Frequently Asked Questions

What is NSN 4920-01-041-5811?

NSN 4920-01-041-5811 is a Test Adapter,cap, manufactured by Aar Brooks and Perkins Corp Aeronetics Div, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-041-5811?

NSN 4920-01-041-5811 has 1 cross-referenced part number: 521-15 (Aar Brooks and Perkins Corp Aeronetics Div).

What NSN replaces 4920-01-041-5811?

There are 9 known substitutes for 4920-01-041-5811: 1620-00-020-2660, 2910-00-057-1421, 4730-00-142-1782 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 521-15?

Key specifications for 521-15: End Item Identification: E-3A ACFT AGE. A. 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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