PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1891Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-00-969-2700 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-969-2700 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-969-2700. Primary manufacturer part number: 1891.
Features
  • Seat,valve — FSC 4820
  • 3 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
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-969-2700, 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. This item has 3 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: Cancelled.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378); Lawler Manufacturing Company, Inc. (CAGE 75545)
Technical Specifications
ParameterValue
NSN4820-00-969-2700
Primary Part Number1891
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6685-00-001-4183 INTERCHANGEABLE
Control,positioner
5935-00-201-23381891 INTERCHANGEABLE
Jack,tip
Entron Industries Limited Partnership Dba Entron Industries Property Div
5999-00-264-7968591B1-1 INTERCHANGEABLE
Cap,electrical
Cardwell Condenser Corp Lapointe-Admiral Div
4820-00-367-4867189-1 INTERCHANGEABLE
Cock,drain
Dresser Industries Inc Leroi Div
5360-00-455-71471891 INTERCHANGEABLE
Spring,helical,compression
Thompson Emery Machine & Supply Co
5331-00-515-55584036D28 INTERCHANGEABLE
O-Ring
Curtiss-Wright Controls, Inc. Div Actuation Division
5950-00-648-0777 INTERCHANGEABLE
Transformer,radio Frequency
6240-00-770-33721891 INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
5935-00-814-5835GC810A8B INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation
5950-01-216-466614059 INTERCHANGEABLE
Transformer,power
Magnespec Inc
Cross-Reference Index
Part NumberManufacturer
1016 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
1891 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
1891 Lawler Manufacturing Company, Inc. (USA)
Related Parts
6685-00-001-4183INTERCHANGEABLE
CONTROL,POSITIONER
5935-00-201-2338INTERCHANGEABLE
JACK,TIP
1891
5999-00-264-7968INTERCHANGEABLE
CAP,ELECTRICAL
591B1-1
4820-00-367-4867INTERCHANGEABLE
COCK,DRAIN
189-1
5360-00-455-7147INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1891
5331-00-515-5558INTERCHANGEABLE
O-RING
4036D28
5950-00-648-0777INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
6240-00-770-3372INTERCHANGEABLE
LAMP,INCANDESCENT
1891
5935-00-814-5835INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
GC810A8B
5950-01-216-4666INTERCHANGEABLE
TRANSFORMER,POWER
14059
6750-01-379-7328INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
5310-01-491-8812INTERCHANGEABLE
WASHER,FLAT
1891

Frequently Asked Questions

What is NSN 4820-00-969-2700?

NSN 4820-00-969-2700 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 4820-00-969-2700?

NSN 4820-00-969-2700 has 3 cross-referenced part numbers: 1016 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 1891 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 1891 (Lawler Manufacturing Company, Inc.).

What NSN replaces 4820-00-969-2700?

There are 12 known substitutes for 4820-00-969-2700: 6685-00-001-4183, 5935-00-201-2338, 5999-00-264-7968 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4820-00-969-2700 still in active supply?

NSN 4820-00-969-2700 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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