PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A373Interconnecting Box

Lockheed Martin Corp · NSN 5975-00-358-1889 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-358-1889 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-358-1889. Primary manufacturer part number: A373.
Features
  • Interconnecting Box — FSC 5975
  • FSC Application Data: NAVIGATION SET
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Interconnecting Box, cataloged under National Stock Number 5975-00-358-1889, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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.

Technical Specifications
ParameterValue
NSN5975-00-358-1889
Primary Part NumberA373
Item NameInterconnecting Box
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
FSC Application DataNAVIGATION SET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-022-3668 INTERCHANGEABLE
Seal,oil
3110-00-120-4465608VBF53 INTERCHANGEABLE
Bearing,ball,thrust
Rbc Bearings Incorporated Div West Trenton Division
3510-01-009-9640 INTERCHANGEABLE
Valve Assembly
Cross-Reference Index
Part NumberManufacturer
A373 PRIMARY Lockheed Martin Corp (USA)
Related Parts
5330-00-022-3668INTERCHANGEABLE
SEAL,OIL
3110-00-120-4465INTERCHANGEABLE
BEARING,BALL,THRUST
608VBF53
3510-01-009-9640INTERCHANGEABLE
VALVE ASSEMBLY

Frequently Asked Questions

What is NSN 5975-00-358-1889?

NSN 5975-00-358-1889 is a Interconnecting Box, manufactured by Lockheed Martin Corp, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-00-358-1889?

NSN 5975-00-358-1889 has 1 cross-referenced part number: A373 (Lockheed Martin Corp).

What NSN replaces 5975-00-358-1889?

There are 3 known substitutes for 5975-00-358-1889: 5330-00-022-3668, 3110-00-120-4465, 3510-01-009-9640. Verify interchangeability with system specifications before substitution.

What are the specifications of A373?

Key specifications for A373: Overall Width: 24.000 INCHES NOMINAL IN; Overall Height: 6.530 INCHES NOMINAL IN; FSC Application Data: NAVIGATION SET; Special Features: 29.250 IN. LG IN. 4 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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