PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57904Adapter,waveguide

Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple · NSN 5985-00-691-6379 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-691-6379 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-691-6379. Primary manufacturer part number: 57904.
Features
  • Adapter,waveguide — FSC 5985
  • 2 verified cross-references
  • Primary manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,waveguide, cataloged under National Stock Number 5985-00-691-6379, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,waveguide
FSC / FSG5985 — No Item Name Available (FSG 59)
ManufacturersNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (CAGE 26916); Northrop Grumman Systems Corporation Div Es Defensive Systems Division (CAGE 15280)
Technical Specifications
ParameterValue
NSN5985-00-691-6379
Primary Part Number57904
Item NameAdapter,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-034-407457904 INTERCHANGEABLE
Coil,electrical
Hydro-Aire Aerospace Corp
5340-00-569-385557904 INTERCHANGEABLE
Deflector,dirt and Liquid
Honeywell International Inc. Div Aerospace - Torrance
5330-00-949-41905790-4 INTERCHANGEABLE
Gasket
Gulton Industries Inc
6685-01-528-432357904 INTERCHANGEABLE
Indicator,temperature,electrical
Teleflex Inc Electrical Systems Div
Cross-Reference Index
Part NumberManufacturer
57904 PRIMARY Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
57904 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
Related Parts
5950-00-034-4074INTERCHANGEABLE
COIL,ELECTRICAL
57904
5340-00-569-3855INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
57904
5330-00-949-4190INTERCHANGEABLE
GASKET
5790-4
6685-01-528-4323INTERCHANGEABLE
INDICATOR,TEMPERATURE,ELECTRICAL
57904

Frequently Asked Questions

What is NSN 5985-00-691-6379?

NSN 5985-00-691-6379 is a Adapter,waveguide, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-691-6379?

NSN 5985-00-691-6379 has 2 cross-referenced part numbers: 57904 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 57904 (Northrop Grumman Systems Corporation Div Es Defensive Systems Division).

What NSN replaces 5985-00-691-6379?

There are 4 known substitutes for 5985-00-691-6379: 5950-00-034-4074, 5340-00-569-3855, 5330-00-949-4190 and 1 more. Verify interchangeability with system specifications before substitution.

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