PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

294-66Inserter,electrical Connector

Amphenol Corp Div Amphenol Aerospace Operations · NSN 5120-01-522-2017 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-522-2017 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-522-2017. Primary manufacturer part number: 294-66.
Features
  • Inserter,electrical Connector — FSC 5120
  • 3 verified cross-references
  • Primary manufacturer: Amphenol Corp Div Amphenol Aerospace Operations
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Inserter,electrical Connector, cataloged under National Stock Number 5120-01-522-2017, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-522-2017
Primary Part Number294-66
Item NameInserter,electrical Connector
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerAmphenol Corp Div Amphenol Aerospace Operations
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-945-04628901K14P018 INTERCHANGEABLE
Washer,flat
Ametek Inc Div Aerospace and Defense
3040-01-084-0539CB27571-001 INTERCHANGEABLE
Piston Rack,hydraulic Actuator
Moog Inc. Dba Ampac-Isp Corp
4710-01-421-146329466 INTERCHANGEABLE
Tube Assembly,metal
Briggs and Stratton Corp
5330-01-649-451454359 INTERCHANGEABLE
Gasket
Generac Mobile Products, Llc
Cross-Reference Index
Part NumberManufacturer
294-66 PRIMARY Amphenol Corp Div Amphenol Aerospace Operations (USA)
MTA30-50 Contact Service Tool Inc (USA)
ATA3050 Astro Tool Corp. (USA)
Related Parts
5310-00-945-0462INTERCHANGEABLE
WASHER,FLAT
8901K14P018
3040-01-084-0539INTERCHANGEABLE
PISTON RACK,HYDRAULIC ACTUATOR
CB27571-001
4710-01-421-1463INTERCHANGEABLE
TUBE ASSEMBLY,METAL
29466
5330-01-649-4514INTERCHANGEABLE
GASKET
54359

Frequently Asked Questions

What is NSN 5120-01-522-2017?

NSN 5120-01-522-2017 is a Inserter,electrical Connector, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-522-2017?

NSN 5120-01-522-2017 has 3 cross-referenced part numbers: 294-66 (Amphenol Corp Div Amphenol Aerospace Operations), MTA30-50 (Contact Service Tool Inc), ATA3050 (Astro Tool Corp.).

What NSN replaces 5120-01-522-2017?

There are 4 known substitutes for 5120-01-522-2017: 5310-00-945-0462, 3040-01-084-0539, 4710-01-421-1463 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 294-66?

Key specifications for 294-66: Part Name Assigned by Controlling Agency: (INAVY):INSTALLING TOOL; End Item Identification: TOOL SET ASSY 2. 2 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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