PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4088F-PCS4AND17Poppet and Stem Assembly

Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa · NSN 4820-00-035-9618 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-035-9618 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-035-9618. Primary manufacturer part number: 4088F-PCS4AND17.
Features
  • Poppet and Stem Assembly — FSC 4820
  • General Characteristics Item Description: 4.125 IN DIA OF POPPET; 0.875 IN. DIA OF STEM 13.312 IN. O/A LG; STEM THREADED 0.625-11 UNC IN
  • 3 verified cross-references
  • Primary manufacturer: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Poppet and Stem Assembly, cataloged under National Stock Number 4820-00-035-9618, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, 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
NSN4820-00-035-9618
Primary Part Number4088F-PCS4AND17
Item NamePoppet and Stem Assembly
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerAtwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
StatusACTIVE
General Characteristics Item Description4.125 IN DIA OF POPPET; 0.875 IN. DIA OF STEM 13.312 IN. O/A LG; STEM THREADED 0.625-11 UNC IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3455-00-129-572014140 INTERCHANGEABLE
Cutter,milling,corner Rounding
Niagara Cutter Inc
8010-00-141-2951 INTERCHANGEABLE
Enamel
5305-00-288-450914140 INTERCHANGEABLE
Setscrew
Aerosonic Llc
5865-00-301-0913141-40 INTERCHANGEABLE
Amplifiermi,er Stag
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
6640-00-442-0000 INTERCHANGEABLE
Stopper,bottle
2520-00-468-441003065856 INTERCHANGEABLE
Parts Kit,universal Joint
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
5940-00-577-0734600-JJ-14 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
5999-00-636-958914140 INTERCHANGEABLE
Cap,electrical
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5950-00-683-705585-315 INTERCHANGEABLE
Coil,radio Frequency
Bogen Communications Inc
3040-00-695-26044R20A INTERCHANGEABLE
Shaft,drive,oil Pum
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
14140 Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
4088F2PC4-17 Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
4088F-PCS4AND17 PRIMARY Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
Related Parts
3455-00-129-5720INTERCHANGEABLE
CUTTER,MILLING,CORNER ROUNDING
14140
8010-00-141-2951INTERCHANGEABLE
ENAMEL
5305-00-288-4509INTERCHANGEABLE
SETSCREW
14140
5865-00-301-0913INTERCHANGEABLE
AMPLIFIERMI,ER STAG
141-40
6640-00-442-0000INTERCHANGEABLE
STOPPER,BOTTLE
2520-00-468-4410INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
03065856
5940-00-577-0734INTERCHANGEABLE
TERMINAL BOARD
600-JJ-14
5999-00-636-9589INTERCHANGEABLE
CAP,ELECTRICAL
14140
5950-00-683-7055INTERCHANGEABLE
COIL,RADIO FREQUENCY
85-315
3040-00-695-2604INTERCHANGEABLE
SHAFT,DRIVE,OIL PUM
4R20A
6640-01-016-9969INTERCHANGEABLE
STOPPER,BOTTLE
59582-144
5925-01-149-9296INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 4820-00-035-9618?

NSN 4820-00-035-9618 is a Poppet and Stem Assembly, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-035-9618?

NSN 4820-00-035-9618 has 3 cross-referenced part numbers: 14140 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 4088F2PC4-17 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa), 4088F-PCS4AND17 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa).

What NSN replaces 4820-00-035-9618?

There are 12 known substitutes for 4820-00-035-9618: 3455-00-129-5720, 8010-00-141-2951, 5305-00-288-4509 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4088F-PCS4AND17?

Key specifications for 4088F-PCS4AND17: General Characteristics Item Description: 4.125 IN DIA OF POPPET; 0.875 IN. DIA OF STEM 13.312 IN. O/A LG; STEM THREADED 0.625-11 UNC IN. 1 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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