PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LL18Conduit Outlet

Crouse-Hinds Co · NSN 5975-00-553-3607 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-553-3607 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-553-3607. Primary manufacturer part number: LL18.
Features
  • Conduit Outlet — FSC 5975
  • Furnished Items: COVER MOUNTING SCREW
  • Hazardous Locations/environmental Protection: NOT RATED
  • Cover Quantity: 1
  • Functional Cover Style: BLANK
  • Style Designator: OBLONG
  • Surface Treatment: CADMIUM OVERALL
  • Cover Opening Length: 8.500 INCHES NOMINAL IN
Applications
  • Applications requiring Iron Overall construction
General Description

The Conduit Outlet, cataloged under National Stock Number 5975-00-553-3607, 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 Crouse-Hinds Co. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-553-3607
Primary Part NumberLL18
Item NameConduit Outlet
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerCrouse-Hinds Co
StatusCANCELLED
Furnished ItemsCOVER MOUNTING SCREW
Hazardous Locations/environmental ProtectionNOT RATED
Cover Quantity1
Functional Cover StyleBLANK
Style DesignatorOBLONG
Surface TreatmentCADMIUM OVERALL
Cover Opening Length8.500 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 DESIGN AND L STYLE AND 1 TYPE
Conduit Entrance TypeHUB DRILLED AND TAPPED ALL ENTRANCE
Conduit Trade Size Accommodated0.500 INCHES ALL ENTRANCE IN
Cover Opening Width3.687 INCHES NOMINAL IN
Trade DesignationLL SERIES FORM 7
MaterialIRON OVERALL
Conduit Type AccommodatedRIGID METALLIC THICKWALL ALL ENTRANCE
Cover Mounting Gasket TypeSOLID CENTER
Cover Mounting Surface TypeFLAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5330-00-349-6753BS4-1430,PC.10 INTERCHANGEABLE
Gland Packing,split
Circor Naval Solutions Llc Dba Warren Pumps
4720-00-807-7088LL18 INTERCHANGEABLE
Hose,nonmetallic
Wisconsin Motors, Llc
4010-01-139-4876LL1-8 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Southco, S. De R.l. De C.v
Cross-Reference Index
Part NumberManufacturer
LL18 Crouse-Hinds Co (USA)
AA50563-101ALAAA Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-50563 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
WC586 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5330-00-349-6753INTERCHANGEABLE
GLAND PACKING,SPLIT
BS4-1430,PC.10
4720-00-807-7088INTERCHANGEABLE
HOSE,NONMETALLIC
LL18
4010-01-139-4876INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
LL1-8

Frequently Asked Questions

What is NSN 5975-00-553-3607?

NSN 5975-00-553-3607 is a Conduit Outlet, manufactured by Crouse-Hinds Co, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-553-3607?

NSN 5975-00-553-3607 has 4 cross-referenced part numbers: LL18 (Crouse-Hinds Co), AA50563-101ALAAA (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-50563 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), WC586 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5975-00-553-3607?

There are 3 known substitutes for 5975-00-553-3607: 5330-00-349-6753, 4720-00-807-7088, 4010-01-139-4876. Verify interchangeability with system specifications before substitution.

What are the specifications of LL18?

Key specifications for LL18: Furnished Items: COVER MOUNTING SCREW; Hazardous Locations/environmental Protection: NOT RATED; Cover Quantity: 1; Functional Cover Style: BLANK. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-553-3607 still in active supply?

NSN 5975-00-553-3607 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.
PartsTable Design LLC · partstable.com