PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LB-300GConduit Outlet

Egs Electric Co Llc · NSN 5975-00-239-0334 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-239-0334 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-239-0334. Primary manufacturer part number: LB-300G.
Features
  • Conduit Outlet — FSC 5975
  • Functional Cover Style: BLANK
  • Cover Opening Width: 3.562 INCHES NOMINAL IN
  • Cover Quantity: 1
  • Conduit Type Accommodated: RIGID METALLIC THICKWALL ALL ENTRANCE
  • Style Designator: OBLONG
  • Cover Opening Length: 8.375 INCHES NOMINAL IN
  • Trade Designation: LB SERIES
Applications
  • Applications requiring Iron Malleable Overall construction
General Description

The Conduit Outlet, cataloged under National Stock Number 5975-00-239-0334, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Egs Electric Co Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-239-0334
Primary Part NumberLB-300G
Item NameConduit Outlet
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerEgs Electric Co Llc
StatusCANCELLED
Functional Cover StyleBLANK
Cover Opening Width3.562 INCHES NOMINAL IN
Cover Quantity1
Conduit Type AccommodatedRIGID METALLIC THICKWALL ALL ENTRANCE
Style DesignatorOBLONG
Cover Opening Length8.375 INCHES NOMINAL IN
Trade DesignationLB SERIES
Nondefinitive Spec/std Data1 TYPE
Conduit Entrance TypeHUB DRILLED AND TAPPED ALL ENTRANCE
Cover Mounting Gasket TypeSOLID CENTER
Surface TreatmentCADMIUM AND ZINC OVERALL
Conduit Trade Size Accommodated3.000 INCHES ALL ENTRANCE IN
MaterialIRON MALLEABLE OVERALL
Departure From Cited DesignatorAS MODIFIED BYMATERIAL AND SURFACE TREATMENT
Hazardous Locations/environmental ProtectionCORROSION PROOF
Cover Mounting Surface TypeFLAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3030-00-109-254570303 INTERCHANGEABLE
Belt,v
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5975-00-242-6707 INTERCHANGEABLE
Conduit Outlet
5330-00-245-550365183 INTERCHANGEABLE
Gasket
Hdt Expeditionary Systems Inc
5330-00-250-516515707 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
9535-00-277-7423 INTERCHANGEABLE
Sheet,metal
5935-00-458-68266-1313-9 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
6635-00-490-207770303 INTERCHANGEABLE
Tester,material Hardness
Shore Instrument and Mfg Co Inc Sub of High Voltage Engineering Corp
5355-00-519-73851570-7 INTERCHANGEABLE
Window,dial
Elbitamerica, Inc.
4820-00-646-95247030-3 INTERCHANGEABLE
Seat,valve
Woodward Hrt, Inc. Dba Woodward Hrt Inc
4720-00-757-342015707 INTERCHANGEABLE
Hose Assembly,fuel Control
Williams International Co., L.l.c.
Cross-Reference Index
Part NumberManufacturer
LB-300G Egs Electric Co Llc (USA)
480-111-M Atlas Technologies Inc (USA)
LB87 Crouse-Hinds Lighting (USA)
70-303 Midas Intl Corp (USA)
WC586 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
LB68 Bridgeport Fittings Inc (USA)
LB87 Crouse-Hinds Co (USA)
LB300-M Egs Electrical Group Appleton Div (USA)
15707 Atlas Technologies Inc (USA)
Related Parts
3030-00-109-2545INTERCHANGEABLE
BELT,V
70303
5975-00-242-6707INTERCHANGEABLE
CONDUIT OUTLET
5330-00-245-5503INTERCHANGEABLE
GASKET
65183
5330-00-250-5165INTERCHANGEABLE
SEAL,PLAIN ENCASED
15707
9535-00-277-7423INTERCHANGEABLE
SHEET,METAL
5935-00-458-6826INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
6-1313-9
6635-00-490-2077INTERCHANGEABLE
TESTER,MATERIAL HARDNESS
70303
5355-00-519-7385INTERCHANGEABLE
WINDOW,DIAL
1570-7
4820-00-646-9524INTERCHANGEABLE
SEAT,VALVE
7030-3
4720-00-757-3420INTERCHANGEABLE
HOSE ASSEMBLY,FUEL CONTROL
15707
5930-00-868-8474INTERCHANGEABLE
SWITCH,PRESSURE
7937555
6640-00-933-8739INTERCHANGEABLE
CATALYST,ANAEROBIC CULTURE APPAR
270303

Frequently Asked Questions

What is NSN 5975-00-239-0334?

NSN 5975-00-239-0334 is a Conduit Outlet, manufactured by Egs Electric Co Llc, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-239-0334?

NSN 5975-00-239-0334 has 9 cross-referenced part numbers: LB-300G (Egs Electric Co Llc), 480-111-M (Atlas Technologies Inc), LB87 (Crouse-Hinds Lighting), 70-303 (Midas Intl Corp), WC586 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 5975-00-239-0334?

There are 12 known substitutes for 5975-00-239-0334: 3030-00-109-2545, 5975-00-242-6707, 5330-00-245-5503 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LB-300G?

Key specifications for LB-300G: Overall Depth: 5.875 INCHES NOMINAL IN; Functional Cover Style: BLANK; Cover Opening Width: 3.562 INCHES NOMINAL IN; Cover Quantity: 1. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-239-0334 still in active supply?

NSN 5975-00-239-0334 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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