PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

899-04Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-189-8627 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-189-8627 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-189-8627. Primary manufacturer part number: 899-04.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: FLAT
  • Style Designator: PLAIN THREADED
  • Material: NICKEL ALLOY OVERALL
  • 5 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-189-8627, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-189-8627
Primary Part Number899-04
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
Seating Surface ShapeFLAT
Style DesignatorPLAIN THREADED
MaterialNICKEL ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2520-00-188-1050899 INTERCHANGEABLE
Parts Kit,universal Joint
Precision Universal Joint Corp
6680-00-359-904904043 INTERCHANGEABLE
Indicator,sight,liquid
Gits Mfg Co Inc
5935-00-665-76281275 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell-Raco Inc
5910-00-668-0145AR-8990-4 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Argent Industries, Inc.
2530-00-770-2185 INTERCHANGEABLE
Steering Wheel
5940-00-969-5898 INTERCHANGEABLE
Terminal Board
4520-01-125-6241A-100 INTERCHANGEABLE
Heating Element,electrical,nonim
Jenn-Air Co Div of Maytag Corp
4820-01-156-8391900-00 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5940-01-168-4264899 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
5330-01-420-6686899 INTERCHANGEABLE
Gasket
Universal Flow Monitors Inc
Cross-Reference Index
Part NumberManufacturer
40404-1 FIND NO. 25 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40404-1 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
899-04 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
899 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40404-02 FIND 25 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
2520-00-188-1050INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
899
6680-00-359-9049INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
04043
5935-00-665-7628INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
1275
5910-00-668-0145INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
AR-8990-4
2530-00-770-2185INTERCHANGEABLE
STEERING WHEEL
5940-00-969-5898INTERCHANGEABLE
TERMINAL BOARD
4520-01-125-6241INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
A-100
4820-01-156-8391INTERCHANGEABLE
DISK,VALVE
900-00
5940-01-168-4264INTERCHANGEABLE
TERMINAL,LUG
899
5330-01-420-6686INTERCHANGEABLE
GASKET
899
1670-01-445-5102INTERCHANGEABLE
TUBE STOES,ELASTIC
89904
4820-01-476-0036INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
712-01

Frequently Asked Questions

What is NSN 4820-01-189-8627?

NSN 4820-01-189-8627 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-189-8627?

NSN 4820-01-189-8627 has 5 cross-referenced part numbers: 40404-1 FIND NO. 25 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40404-1 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 899-04 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 899 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40404-02 FIND 25 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-189-8627?

There are 12 known substitutes for 4820-01-189-8627: 2520-00-188-1050, 6680-00-359-9049, 5935-00-665-7628 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 899-04?

Key specifications for 899-04: Overall Height: 0.938 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Style Designator: PLAIN THREADED; Material: NICKEL ALLOY OVERALL. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-189-8627 still in active supply?

NSN 4820-01-189-8627 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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