PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18643Separator,interstage

Electro Impulse Laboratory Inc Dba Electro Impulse Inc · NSN 4440-01-178-8513 · FSC 4440 · No Item Name Available
Verified by PartsTable
NSN 4440-01-178-8513 — this item is cataloged by the U.S. Government under National Stock Number 4440-01-178-8513. Primary manufacturer part number: 18643.
Features
  • Separator,interstage — FSC 4440
  • General Characteristics Item Description: STEEL; 13.031 IN. H,6.000 IN. OD,0.500 IN. CONDENSATE OUTLET OD,1.625 IN. DRY AIR OUTLET OD,1.625 IN. WET AIR INLET OD,150 PSIG WORKING,750 PSIG MAX PRESSURE IN
  • 2 verified cross-references
  • Primary manufacturer: Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Separator,interstage, cataloged under National Stock Number 4440-01-178-8513, is classified within Federal Supply Class 4440 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Electro Impulse Laboratory Inc Dba Electro Impulse Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4440-01-178-8513
Primary Part Number18643
Item NameSeparator,interstage
FSC / FSG4440 / 44 — No Item Name Available
ManufacturerElectro Impulse Laboratory Inc Dba Electro Impulse Inc
StatusACTIVE
General Characteristics Item DescriptionSTEEL; 13.031 IN. H,6.000 IN. OD,0.500 IN. CONDENSATE OUTLET OD,1.625 IN. DRY AIR OUTLET OD,1.625 IN. WET AIR INLET OD,150 PSIG WORKING,750 PSIG MAX PRESSURE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5360-00-147-3745PM58 INTERCHANGEABLE
Spring,helical,compression
Wisconsin Motors, Llc
2530-00-148-1520163-41 INTERCHANGEABLE
Seal Kit,hydrostat
Hamilton Sundstrand Corporation
4810-00-226-253118643 INTERCHANGEABLE
Sleeve and Slide,directional Con
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5950-00-482-084218-643 INTERCHANGEABLE
Coil,radio Frequency
Albert Frei & Sons, Inc. Dba Afs
5330-01-091-92441864-3 INTERCHANGEABLE
Retainer,packing Backup
Tescom Corp Dba Tescom Div Tescom
5950-01-168-463918-643 INTERCHANGEABLE
Transformer,power
L3harris Maritime Power & Energy Solutions, Inc
3020-01-205-877918643 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
C18643 Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
18643 PRIMARY Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
Related Parts
5360-00-147-3745INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
PM58
2530-00-148-1520INTERCHANGEABLE
SEAL KIT,HYDROSTAT
163-41
4810-00-226-2531INTERCHANGEABLE
SLEEVE AND SLIDE,DIRECTIONAL CON
18643
5950-00-482-0842INTERCHANGEABLE
COIL,RADIO FREQUENCY
18-643
5330-01-091-9244INTERCHANGEABLE
RETAINER,PACKING BACKUP
1864-3
5950-01-168-4639INTERCHANGEABLE
TRANSFORMER,POWER
18-643
3020-01-205-8779INTERCHANGEABLE
GEAR RACK
18643

Frequently Asked Questions

What is NSN 4440-01-178-8513?

NSN 4440-01-178-8513 is a Separator,interstage, manufactured by Electro Impulse Laboratory Inc Dba Electro Impulse Inc, classified under FSC 4440 (No Item Name Available). Status: active.

What are the part numbers for NSN 4440-01-178-8513?

NSN 4440-01-178-8513 has 2 cross-referenced part numbers: C18643 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc), 18643 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc).

What NSN replaces 4440-01-178-8513?

There are 7 known substitutes for 4440-01-178-8513: 5360-00-147-3745, 2530-00-148-1520, 4810-00-226-2531 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18643?

Key specifications for 18643: End Item Identification: ELECTRO IMPULSE S9551A1-MM-N010 LOW PRESSURE AIR DEHYDRATOR,TYPE 1,CLASS 7; General Characteristics Item Description: STEEL; 13.031 IN. H,6.000 IN. OD,0.500 IN. CONDENSATE OUTLET OD,1.625 IN. DRY AIR OUTLET OD,1.625 IN. WET AIR INLET OD,150 PSIG WORKING,750 PSIG MAX PRESSURE 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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