PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18114Connector,duct

Drs Environmental Systems Inc · NSN 4520-01-042-3058 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-042-3058 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-042-3058. Primary manufacturer part number: 18114.
Features
  • Connector,duct — FSC 4520
  • General Characteristics Item Description: 7.875 IN.,0.062 IN. PORM 0.125 IN. ID O/A,4.500 IN. O/A W,WITH 6 BOLT HOLES UNEVENLY SPACED IN
  • 3 verified cross-references
  • Primary manufacturer: Drs Environmental Systems Inc
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,duct, cataloged under National Stock Number 4520-01-042-3058, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-042-3058
Primary Part Number18114
Item NameConnector,duct
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusACTIVE
General Characteristics Item Description7.875 IN.,0.062 IN. PORM 0.125 IN. ID O/A,4.500 IN. O/A W,WITH 6 BOLT HOLES UNEVENLY SPACED IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5306-00-061-224718114 INTERCHANGEABLE
Bolt,internal Wrenching
Goodrich Corporation Dba Goodrich Corp, a New York Corp
5940-00-204-5514214-HS INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
4730-00-278-3912125795-6-4 INTERCHANGEABLE
Bushing,pipe
Cadillac Gage Textron Inc.
2805-00-448-551518-114 INTERCHANGEABLE
Ring,piston
Dresser Industries Inc Waukesha Engine Div
5305-00-576-686118114 INTERCHANGEABLE
Screw,shoulder
Raytheon Company Dba Raytheon
5360-01-024-7237 INTERCHANGEABLE
Spring
5962-01-123-9591 INTERCHANGEABLE
Microcircuit,memory
5950-01-367-80293611 INTERCHANGEABLE
Transformer,power
Quality Transformer & Electronics Dba Quality Transformer and Electronics Co
5305-01-534-973513012048 INTERCHANGEABLE
Thumbscrew
Elbitamerica, Inc.
6515-01-586-2076MMRWP-0006 INTERCHANGEABLE
Lead,surgical Instrument Insulat
Healthmark Industries Co., Inc.
Cross-Reference Index
Part NumberManufacturer
18114 Drs Environmental Systems Inc (USA)
18114 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
18114 Hdt Expeditionary Systems Inc (USA)
Related Parts
5306-00-061-2247INTERCHANGEABLE
BOLT,INTERNAL WRENCHING
18114
5940-00-204-5514INTERCHANGEABLE
TERMINAL BOARD
214-HS
4730-00-278-3912INTERCHANGEABLE
BUSHING,PIPE
125795-6-4
2805-00-448-5515INTERCHANGEABLE
RING,PISTON
18-114
5305-00-576-6861INTERCHANGEABLE
SCREW,SHOULDER
18114
5360-01-024-7237INTERCHANGEABLE
SPRING
5962-01-123-9591INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5950-01-367-8029INTERCHANGEABLE
TRANSFORMER,POWER
3611
5305-01-534-9735INTERCHANGEABLE
THUMBSCREW
13012048
6515-01-586-2076INTERCHANGEABLE
LEAD,SURGICAL INSTRUMENT INSULAT
MMRWP-0006

Frequently Asked Questions

What is NSN 4520-01-042-3058?

NSN 4520-01-042-3058 is a Connector,duct, manufactured by Drs Environmental Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-042-3058?

NSN 4520-01-042-3058 has 3 cross-referenced part numbers: 18114 (Drs Environmental Systems Inc), 18114 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 18114 (Hdt Expeditionary Systems Inc).

What NSN replaces 4520-01-042-3058?

There are 10 known substitutes for 4520-01-042-3058: 5306-00-061-2247, 5940-00-204-5514, 4730-00-278-3912 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18114?

Key specifications for 18114: End Item Identification: PT-250/MC-1 AND PT250-10/MD-1; General Characteristics Item Description: 7.875 IN.,0.062 IN. PORM 0.125 IN. ID O/A,4.500 IN. O/A W,WITH 6 BOLT HOLES UNEVENLY SPACED IN. 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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