PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

904-1Radome

Cpi Essco Inc · NSN 5985-00-283-2651 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-283-2651 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-283-2651. Primary manufacturer part number: 904-1.
Features
  • Radome — FSC 5985
  • De-Icing Provision: NOT INCLUDED
  • Overall Diameter: 55.500 FEET NOMINAL FT
  • Material: ALUMINUM
  • Inflated Radome Shape: TRUNCATED SPHERE
  • Functional Description: INCLOSES THE ANTENNA SYSTEM AND THUS PROVIDES ADEQUATE PROTECTION FOR THE INCLOSED EQUIPMENT FROM CLIMATIC CONDITIONS
  • Radome Flexibility: RIGID
  • Pressurizing Device: NOT INCLUDED
Applications
  • Applications requiring Aluminum construction
General Description

The Radome, cataloged under National Stock Number 5985-00-283-2651, 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 Cpi Essco Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-283-2651
Primary Part Number904-1
Item NameRadome
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerCpi Essco Inc
StatusACTIVE
De-Icing ProvisionNOT INCLUDED
Overall Diameter55.500 FEET NOMINAL FT
MaterialALUMINUM
Inflated Radome ShapeTRUNCATED SPHERE
Functional DescriptionINCLOSES THE ANTENNA SYSTEM AND THUS PROVIDES ADEQUATE PROTECTION FOR THE INCLOSED EQUIPMENT FROM CLIMATIC CONDITIONS
Radome FlexibilityRIGID
Pressurizing DeviceNOT INCLUDED
Anti-Icing ProvisionNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-00-133-915032-76058-17 INTERCHANGEABLE
Relay,electromagnetic
The Boeing Company Div Defense
5930-00-189-658519910-4ALTA INTERCHANGEABLE
Switch,push
Hickok Waekon Llc
4820-00-287-438054B-700-100 INTERCHANGEABLE
Valve,check
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
6940-00-319-1915 INTERCHANGEABLE
Panel Assembly,limiter-Discrimin
4820-00-462-76199672045-10 INTERCHANGEABLE
Parts Kit,pressure Regulating VA
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
6625-01-068-06419041 INTERCHANGEABLE
Test Set,transmission Line
Anritsu Company
6530-01-082-4902 INTERCHANGEABLE
Table,overbed
4330-01-122-435110320-5 ITEM 4 INTERCHANGEABLE
Guide,spring
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
4030-01-163-21169041 INTERCHANGEABLE
Anchor,guy
Powers Fasteners, Inc.
2530-01-179-90009041 INTERCHANGEABLE
Wheel Assembly,pneumatic Tire
Erie Malleable Iron Co
Cross-Reference Index
Part NumberManufacturer
904-1 PRIMARY Cpi Essco Inc (USA)
CW-860/GPS Joint Electronics Type Designation System (USA)
Related Parts
5945-00-133-9150INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
32-76058-17
5930-00-189-6585INTERCHANGEABLE
SWITCH,PUSH
19910-4ALTA
4820-00-287-4380INTERCHANGEABLE
VALVE,CHECK
54B-700-100
6940-00-319-1915INTERCHANGEABLE
PANEL ASSEMBLY,LIMITER-DISCRIMIN
4820-00-462-7619INTERCHANGEABLE
PARTS KIT,PRESSURE REGULATING VA
9672045-10
6625-01-068-0641INTERCHANGEABLE
TEST SET,TRANSMISSION LINE
9041
6530-01-082-4902INTERCHANGEABLE
TABLE,OVERBED
4330-01-122-4351INTERCHANGEABLE
GUIDE,SPRING
10320-5 ITEM 4
4030-01-163-2116INTERCHANGEABLE
ANCHOR,GUY
9041
2530-01-179-9000INTERCHANGEABLE
WHEEL ASSEMBLY,PNEUMATIC TIRE
9041
5110-01-313-4336INTERCHANGEABLE
KNIFE,CRAFTSMAN'S
L-1
4820-01-522-1684INTERCHANGEABLE
PLUG,ROTARY,VALVE
9041

Frequently Asked Questions

What is NSN 5985-00-283-2651?

NSN 5985-00-283-2651 is a Radome, manufactured by Cpi Essco Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-283-2651?

NSN 5985-00-283-2651 has 2 cross-referenced part numbers: 904-1 (Cpi Essco Inc), CW-860/GPS (Joint Electronics Type Designation System).

What NSN replaces 5985-00-283-2651?

There are 12 known substitutes for 5985-00-283-2651: 5945-00-133-9150, 5930-00-189-6585, 4820-00-287-4380 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 904-1?

Key specifications for 904-1: De-Icing Provision: NOT INCLUDED; End Item Identification: AN/FPS-20,5840-00-342-6382,RADAR SET; Overall Diameter: 55.500 FEET NOMINAL FT; Material: ALUMINUM. 11 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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