PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3019LDiaphragm,valve,flat

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-00-885-3022 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-885-3022 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-885-3022. Primary manufacturer part number: 3019L.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: RUBBER
  • 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
  • Applications requiring Rubber construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-885-3022, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). 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: Active.

Technical Specifications
ParameterValue
NSN4820-00-885-3022
Primary Part Number3019L
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialRUBBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-024-218644230-00 INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
4210-00-465-1906SFL-GN-95 1 1/2" SPSH INTERCHANGEABLE
Nozzle,fire Equipment
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
4530-00-472-6201F80PLP3GPH45 INTERCHANGEABLE
Nozzle,oil Burner,pressure Atomi
Monarch Mfg Works Inc
5330-00-498-04023019 INTERCHANGEABLE
Packing,preformed
Kearflex Engineering Company
5935-00-570-9075 INTERCHANGEABLE
Connector,receptacle,electrical
4730-00-841-516213624-008 INTERCHANGEABLE
Fitting,lubrication
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
5975-01-034-5532MOD0258 INTERCHANGEABLE
Protector,electrical Cable
Plainville Electrical Products Company, the Dba Plainville Electrical Products
6515-01-139-841600-3019-000-00 INTERCHANGEABLE
Retractor,spinal
Zimmer, Inc. Dba Z Hotel
5315-01-164-178230-19 INTERCHANGEABLE
Pin,quick Release
Bee Industries
5360-01-246-2519 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
3019 Lawler Manufacturing Company, Inc. (USA)
3019L PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
3019 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5330-00-024-2186INTERCHANGEABLE
GASKET
44230-00
4210-00-465-1906INTERCHANGEABLE
NOZZLE,FIRE EQUIPMENT
SFL-GN-95 1 1/2" SPSH
4530-00-472-6201INTERCHANGEABLE
NOZZLE,OIL BURNER,PRESSURE ATOMI
F80PLP3GPH45
5330-00-498-0402INTERCHANGEABLE
PACKING,PREFORMED
3019
5935-00-570-9075INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4730-00-841-5162INTERCHANGEABLE
FITTING,LUBRICATION
13624-008
5975-01-034-5532INTERCHANGEABLE
PROTECTOR,ELECTRICAL CABLE
MOD0258
6515-01-139-8416INTERCHANGEABLE
RETRACTOR,SPINAL
00-3019-000-00
5315-01-164-1782INTERCHANGEABLE
PIN,QUICK RELEASE
30-19
5360-01-246-2519INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4710-01-278-1053INTERCHANGEABLE
TUBE,AIR HORN INTAKE
5584559
5999-01-280-5482INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON

Frequently Asked Questions

What is NSN 4820-00-885-3022?

NSN 4820-00-885-3022 is a Diaphragm,valve,flat, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-885-3022?

NSN 4820-00-885-3022 has 3 cross-referenced part numbers: 3019 (Lawler Manufacturing Company, Inc.), 3019L (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 3019 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-00-885-3022?

There are 12 known substitutes for 4820-00-885-3022: 5330-00-024-2186, 4210-00-465-1906, 4530-00-472-6201 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3019L?

Key specifications for 3019L: Material: RUBBER; Special Features: ADDITIONAL MATERIAL: CLOTH. 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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