PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16441Top Housing Capsule

Ashcroft Inc Dba Heise · NSN 4820-00-036-1857 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-036-1857 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-036-1857. Primary manufacturer part number: 16441.
Features
  • Top Housing Capsule — FSC 4820
  • General Characteristics Item Description: MATERIAL,NICKEL ALLOY;HEIGHT,1.232 IN; 0BASE HAS FLANGE WITH KNUBLED EDGE,INSIDE DIA 3.258 IN;TOP ID 2.675 IN,OD 3.025 IN.BEGINNING EDGE THREADED;THICKNESS 0.350 IN;HAS INTERNAL GROOVE JUST BELOW THREADS;OD OD FLANGED END 3.752 IN; FLANGE THICKNESS 0.144 IN IN
  • 2 verified cross-references
  • Primary manufacturer: Ashcroft Inc Dba Heise
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Top Housing Capsule, cataloged under National Stock Number 4820-00-036-1857, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-036-1857
Primary Part Number16441
Item NameTop Housing Capsule
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAshcroft Inc Dba Heise
StatusACTIVE
General Characteristics Item DescriptionMATERIAL,NICKEL ALLOY;HEIGHT,1.232 IN; 0BASE HAS FLANGE WITH KNUBLED EDGE,INSIDE DIA 3.258 IN;TOP ID 2.675 IN,OD 3.025 IN.BEGINNING EDGE THREADED;THICKNESS 0.350 IN;HAS INTERNAL GROOVE JUST BELOW THREADS;OD OD FLANGED END 3.752 IN; FLANGE THICKNESS 0.144 IN IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-259-772916441 INTERCHANGEABLE
Terminal,stud
Prestolite Electric Inc
4820-00-287-31933-9-3V INTERCHANGEABLE
Valve,gate
Gas Equipment Engineering Corporation, the Dba Geeco
5365-00-402-88551-64-41 INTERCHANGEABLE
Spacer,sleeve
Mission Systems Orchard Park Inc
5950-00-403-2536740890-101 INTERCHANGEABLE
Reactor
Lockheed Martin Corp
5360-00-419-032416441 INTERCHANGEABLE
Spring,helical,compression
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5330-00-928-2471 INTERCHANGEABLE
Gasket
5305-00-945-0505MS35275-212 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3010-00-951-05371644-1 INTERCHANGEABLE
Pressure Plate Assembly,clutch
Drs Signal Solutions, Inc.
5950-01-311-3695 INTERCHANGEABLE
Transformer,current
4730-01-356-476813226E7991 INTERCHANGEABLE
Bushing,tank
Cecom Lr Center
Cross-Reference Index
Part NumberManufacturer
16441 Ashcroft Inc Dba Heise (USA)
16441 Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse (USA)
Related Parts
5940-00-259-7729INTERCHANGEABLE
TERMINAL,STUD
16441
4820-00-287-3193INTERCHANGEABLE
VALVE,GATE
3-9-3V
5365-00-402-8855INTERCHANGEABLE
SPACER,SLEEVE
1-64-41
5950-00-403-2536INTERCHANGEABLE
REACTOR
740890-101
5360-00-419-0324INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
16441
5330-00-928-2471INTERCHANGEABLE
GASKET
5305-00-945-0505INTERCHANGEABLE
SCREW,MACHINE
MS35275-212
3010-00-951-0537INTERCHANGEABLE
PRESSURE PLATE ASSEMBLY,CLUTCH
1644-1
5950-01-311-3695INTERCHANGEABLE
TRANSFORMER,CURRENT
4730-01-356-4768INTERCHANGEABLE
BUSHING,TANK
13226E7991
4820-01-366-7128INTERCHANGEABLE
VALVE,BALL
16441
5895-01-460-8035INTERCHANGEABLE
CASE,ELECTRONIC COMMUNICATIONS E
00016441

Frequently Asked Questions

What is NSN 4820-00-036-1857?

NSN 4820-00-036-1857 is a Top Housing Capsule, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-036-1857?

NSN 4820-00-036-1857 has 2 cross-referenced part numbers: 16441 (Ashcroft Inc Dba Heise), 16441 (Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse).

What NSN replaces 4820-00-036-1857?

There are 12 known substitutes for 4820-00-036-1857: 5940-00-259-7729, 4820-00-287-3193, 5365-00-402-8855 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16441?

Key specifications for 16441: General Characteristics Item Description: MATERIAL,NICKEL ALLOY;HEIGHT,1.232 IN; 0BASE HAS FLANGE WITH KNUBLED EDGE,INSIDE DIA 3.258 IN;TOP ID 2.675 IN,OD 3.025 IN.BEGINNING EDGE THREADED;THICKNESS 0.350 IN;HAS INTERNAL GROOVE JUST BELOW THREADS;OD OD FLANGED END 3.752 IN; FLANGE THICKNESS 0.144 IN IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com