PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6571Socket,coupling

Stewart Avionics Inc · NSN 4910-00-074-0411 · FSC 4910 · No Item Name Available
Verified by PartsTable
NSN 4910-00-074-0411 — this item is cataloged by the U.S. Government under National Stock Number 4910-00-074-0411. Primary manufacturer part number: A6571.
Features
  • Socket,coupling — FSC 4910
  • 1 verified cross-reference
  • Primary manufacturer: Stewart Avionics Inc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Socket,coupling, cataloged under National Stock Number 4910-00-074-0411, is classified within Federal Supply Class 4910 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Stewart Avionics Inc. 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.

Catalog Facts
Item NameSocket,coupling
FSC / FSG4910 — No Item Name Available (FSG 49)
ManufacturersStewart Avionics Inc (CAGE 96787)
Technical Specifications
ParameterValue
NSN4910-00-074-0411
Primary Part NumberA6571
Item NameSocket,coupling
FSC / FSG4910 / 49 — No Item Name Available
ManufacturerStewart Avionics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5331-00-556-71766571-00 INTERCHANGEABLE
O-Ring
Lawler Manufacturing Company, Inc.
4730-01-163-05993890-203-130 INTERCHANGEABLE
Nut,union
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
A6571 PRIMARY Stewart Avionics Inc (USA)
Related Parts
5331-00-556-7176INTERCHANGEABLE
O-RING
6571-00
4730-01-163-0599INTERCHANGEABLE
NUT,UNION
3890-203-130

Frequently Asked Questions

What is NSN 4910-00-074-0411?

NSN 4910-00-074-0411 is a Socket,coupling, manufactured by Stewart Avionics Inc, classified under FSC 4910 (No Item Name Available). Status: active.

What are the part numbers for NSN 4910-00-074-0411?

NSN 4910-00-074-0411 has 1 cross-referenced part number: A6571 (Stewart Avionics Inc).

What NSN replaces 4910-00-074-0411?

There are 2 known substitutes for 4910-00-074-0411: 5331-00-556-7176, 4730-01-163-0599. Verify interchangeability with system specifications before substitution.

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