PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8441964-1Cap,electrical

Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories · NSN 5999-00-754-9049 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-754-9049 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-754-9049. Primary manufacturer part number: 8441964-1.
Features
  • Cap,electrical — FSC 5999
  • Thread Size: 2-1/4-24
  • FSC Application Data: EARPHONE ELEMENT
  • Material: PLASTIC BODY
  • Diameter: 2.593 INCHES NOMINAL IN
  • Insert: NOT INCLUDED
  • Mounting Method: THREAD
  • Length: 0.750 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Body construction
General Description

The Cap,electrical, cataloged under National Stock Number 5999-00-754-9049, 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 Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-754-9049
Primary Part Number8441964-1
Item NameCap,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories
StatusACTIVE
Thread Size2-1/4-24
FSC Application DataEARPHONE ELEMENT
MaterialPLASTIC BODY
Diameter2.593 INCHES NOMINAL IN
InsertNOT INCLUDED
Mounting MethodTHREAD
Length0.750 INCHES NOMINAL IN
Fastening FacilityKNURLED EDGE
ChainNOT INCLUDED
Thread Size2-1/4-24
FSC Application DataEARPHONE ELEMENT
MaterialPLASTIC BODY
Diameter2.593 INCHES NOMINAL IN
InsertNOT INCLUDED
Mounting MethodTHREAD
Length0.750 INCHES NOMINAL IN
Fastening FacilityKNURLED EDGE
ChainNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.2200 lbs
Cube0.0364 cu ft
Verified Substitutes 6
5945-00-164-173313076 INTERCHANGEABLE
Relay,electromagnetic
American Wyott Corporation Dba Apw Wyott Food Service Equipment
5305-00-206-835213076 INTERCHANGEABLE
Screw,cap,socket Head
Triumph Engine Control Systems Llc
5950-00-228-873213076 INTERCHANGEABLE
Transformer,radio Frequency
Viking Technologies, Ltd.
2835-00-343-998313076 INTERCHANGEABLE
Tube Assy,oil Filte
Alamo Aircraft, Ltd.
5945-01-233-925113076 INTERCHANGEABLE
Relay,electromagnetic
Scott and Fetzer Co the Wayne Home Equipment Div
6670-01-663-084313076 INTERCHANGEABLE
Weight,balance
Rice Lake Weighing Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
8441964-1 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
13076 Roanwell, Llc (USA)
8441964-1 PRIMARY Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories (USA)
Related Parts
5945-00-164-1733INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
13076
5305-00-206-8352INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
13076
5950-00-228-8732INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
13076
2835-00-343-9983INTERCHANGEABLE
TUBE ASSY,OIL FILTE
13076
5945-01-233-9251INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
13076
6670-01-663-0843INTERCHANGEABLE
WEIGHT,BALANCE
13076

Frequently Asked Questions

What is NSN 5999-00-754-9049?

NSN 5999-00-754-9049 is a Cap,electrical, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-754-9049?

NSN 5999-00-754-9049 has 3 cross-referenced part numbers: 8441964-1 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), 13076 (Roanwell, Llc), 8441964-1 (Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Advanced Technology Laboratories).

What NSN replaces 5999-00-754-9049?

There are 6 known substitutes for 5999-00-754-9049: 5945-00-164-1733, 5305-00-206-8352, 5950-00-228-8732 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8441964-1?

Key specifications for 8441964-1: Thread Size: 2-1/4-24; FSC Application Data: EARPHONE ELEMENT; Material: PLASTIC BODY; Diameter: 2.593 INCHES NOMINAL IN. 20 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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