PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1603990-1Cooler,air,electronic Equipment

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5999-01-235-4573 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-235-4573 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-235-4573. Primary manufacturer part number: 1603990-1.
Features
  • Cooler,air,electronic Equipment — FSC 5999
  • Pressurization Connection: INCLUDED
  • Material: COPPER AND STEEL CORROSION RESISTING
  • Pressurization Connection: INCLUDED
  • Material: COPPER AND STEEL CORROSION RESISTING
  • 3 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
Applications
  • Applications requiring Copper and Steel Corrosion Resisting construction
General Description

The Cooler,air,electronic Equipment, cataloged under National Stock Number 5999-01-235-4573, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-235-4573
Primary Part Number1603990-1
Item NameCooler,air,electronic Equipment
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Pressurization ConnectionINCLUDED
MaterialCOPPER AND STEEL CORROSION RESISTING
Pressurization ConnectionINCLUDED
MaterialCOPPER AND STEEL CORROSION RESISTING
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5998-01-204-1772 (5738)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight21.5000 lbs
Cube2.7040 cu ft
Verified Substitutes 5
5998-01-204-17725738 SUCCESSOR
Circuit Card Assembly
Thales Defense & Security Inc Dba Thales Communications Inc
4030-00-352-617429-3-8 INTERCHANGEABLE
Socket,wire Rope
Erie Strayer Co
9540-00-720-1326 INTERCHANGEABLE
Angle,structural
5120-01-461-2016J5738 INTERCHANGEABLE
Socket,socket Wrench
The Stanley Works Dba Stanley Proto
5940-01-725-27795738 INTERCHANGEABLE
Adapter,radio Frequency Cable
Pomona Electronics
Cross-Reference Index
Part NumberManufacturer
5738G1 Boyd Corporation (woburn) Inc (USA)
1603990-1 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
5738 Boyd Corporation (woburn) Inc (USA)
Related Parts
SUCCESSOR 5998-01-204-1772 Circuit Card Assembly · 5738
4030-00-352-6174INTERCHANGEABLE
SOCKET,WIRE ROPE
29-3-8
9540-00-720-1326INTERCHANGEABLE
ANGLE,STRUCTURAL
5120-01-461-2016INTERCHANGEABLE
SOCKET,SOCKET WRENCH
J5738
5940-01-725-2779INTERCHANGEABLE
ADAPTER,RADIO FREQUENCY CABLE
5738

Frequently Asked Questions

What is NSN 5999-01-235-4573?

NSN 5999-01-235-4573 is a Cooler,air,electronic Equipment, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-235-4573?

NSN 5999-01-235-4573 has 3 cross-referenced part numbers: 5738G1 (Boyd Corporation (woburn) Inc), 1603990-1 (Lockheed Martin Corporation Div Rms - Mitchel Field), 5738 (Boyd Corporation (woburn) Inc).

What NSN replaces 5999-01-235-4573?

There are 5 known substitutes for 5999-01-235-4573: 5998-01-204-1772, 4030-00-352-6174, 9540-00-720-1326 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1603990-1?

Key specifications for 1603990-1: Overall Depth: 2.000 INCHES NOMINAL IN; Pressurization Connection: INCLUDED; Material: COPPER AND STEEL CORROSION RESISTING; Overall Height: 11.250 INCHES NOMINAL IN. 10 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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