PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30-800954-1Support Assy,mast

Gould Inc Defense Systems Navcom Systems Div 3dbm Opns · NSN 5840-01-090-1838 · FSC 5840 · No Item Name Available
Verified by PartsTable
NSN 5840-01-090-1838 — this item is cataloged by the U.S. Government under National Stock Number 5840-01-090-1838. Primary manufacturer part number: 30-800954-1.
Features
  • Support Assy,mast — FSC 5840
  • General Characteristics Item Description: ANTENNA MAST SUPPORT ASSY INCLUDES 3 CAPS WITH CHAINS
  • 2 verified cross-references
  • Primary manufacturer: Gould Inc Defense Systems Navcom Systems Div 3dbm Opns
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Support Assy,mast, cataloged under National Stock Number 5840-01-090-1838, is classified within Federal Supply Class 5840 (No Item Name Available) of the Communication, Detection, and Coherent Radiation Equipment group. The primary manufacturer of record is Gould Inc Defense Systems Navcom Systems Div 3dbm Opns. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5840-01-090-1838
Primary Part Number30-800954-1
Item NameSupport Assy,mast
FSC / FSG5840 / 58 — No Item Name Available
ManufacturerGould Inc Defense Systems Navcom Systems Div 3dbm Opns
StatusACTIVE
General Characteristics Item DescriptionANTENNA MAST SUPPORT ASSY INCLUDES 3 CAPS WITH CHAINS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4820-00-071-790730800 INTERCHANGEABLE
Seat,valve
Safeguard Powertech Systems
5950-00-311-831730800 INTERCHANGEABLE
Transformer,audio Frequency
Naval Ship Systems Command
5306-00-451-31265731248 INTERCHANGEABLE
Bolt,machine
Am General Llc
5999-00-806-4007666096-425 INTERCHANGEABLE
Delay Line
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
5935-00-920-61831250-0832 INTERCHANGEABLE
Adapter,connector
Keysight Technologies Inc
5950-01-194-4267653571 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
4320-01-216-338630800 INTERCHANGEABLE
Motor,hydraulic
Mti Insulated Products Inc.
5820-01-518-550730800 INTERCHANGEABLE
Receiver-Transmitter,radio
Anacom Inc
5998-01-522-913330-800 INTERCHANGEABLE
Circuit Card Assembly
Celtech Corporation
Cross-Reference Index
Part NumberManufacturer
30-800954-1 Gould Inc Defense Systems Navcom Systems Div 3dbm Opns (USA)
30-800 Gould Inc Defense Systems Navcom Systems Div 3dbm Opns (USA)
Related Parts
4820-00-071-7907INTERCHANGEABLE
SEAT,VALVE
30800
5950-00-311-8317INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
30800
5306-00-451-3126INTERCHANGEABLE
BOLT,MACHINE
5731248
5999-00-806-4007INTERCHANGEABLE
DELAY LINE
666096-425
5935-00-920-6183INTERCHANGEABLE
ADAPTER,CONNECTOR
1250-0832
5950-01-194-4267INTERCHANGEABLE
TRANSFORMER,POWER
653571
4320-01-216-3386INTERCHANGEABLE
MOTOR,HYDRAULIC
30800
5820-01-518-5507INTERCHANGEABLE
RECEIVER-TRANSMITTER,RADIO
30800
5998-01-522-9133INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
30-800

Frequently Asked Questions

What is NSN 5840-01-090-1838?

NSN 5840-01-090-1838 is a Support Assy,mast, manufactured by Gould Inc Defense Systems Navcom Systems Div 3dbm Opns, classified under FSC 5840 (No Item Name Available). Status: active.

What are the part numbers for NSN 5840-01-090-1838?

NSN 5840-01-090-1838 has 2 cross-referenced part numbers: 30-800954-1 (Gould Inc Defense Systems Navcom Systems Div 3dbm Opns), 30-800 (Gould Inc Defense Systems Navcom Systems Div 3dbm Opns).

What NSN replaces 5840-01-090-1838?

There are 9 known substitutes for 5840-01-090-1838: 4820-00-071-7907, 5950-00-311-8317, 5306-00-451-3126 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30-800954-1?

Key specifications for 30-800954-1: End Item Identification: AN/MPN-14; General Characteristics Item Description: ANTENNA MAST SUPPORT ASSY INCLUDES 3 CAPS WITH CHAINS. 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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