PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1875-00Diaphragm,valve,flat

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-508-4515 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-508-4515 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-508-4515. Primary manufacturer part number: 1875-00.
Features
  • Diaphragm,valve,flat — 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 Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-508-4515, 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 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm,valve,flat
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTrac Regulator Co., Inc. Dba Trac Regulator Co Inc (CAGE 55378)
Technical Specifications
ParameterValue
NSN4820-01-508-4515
Primary Part Number1875-00
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5315-00-290-5330187500 INTERCHANGEABLE
Pin,grooved,headless
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
4820-01-508-44171876-02 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45401881-00 INTERCHANGEABLE
Disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45511880-00 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45551874-00 INTERCHANGEABLE
Guide,diaphragm,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-508-45621882-00 INTERCHANGEABLE
Retainer,disk,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-524-221140737-203 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4820-01-524-25421876-03 INTERCHANGEABLE
Stem,fluid Valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5360-01-643-01312212-00 INTERCHANGEABLE
Spring,helical,extension
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5340-01-643-01351869-00 INTERCHANGEABLE
Cap,filler Opening
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40737-2 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40737-2 PC NO 11 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
1875-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5315-00-290-5330INTERCHANGEABLE
PIN,GROOVED,HEADLESS
187500
4820-01-508-4417INTERCHANGEABLE
STEM,FLUID VALVE
1876-02
4820-01-508-4540INTERCHANGEABLE
DISK,VALVE
1881-00
4820-01-508-4551INTERCHANGEABLE
SEAT,VALVE
1880-00
4820-01-508-4555INTERCHANGEABLE
GUIDE,DIAPHRAGM,VALVE
1874-00
4820-01-508-4562INTERCHANGEABLE
RETAINER,DISK,VALVE
1882-00
4820-01-524-2211INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
40737-203
4820-01-524-2542INTERCHANGEABLE
STEM,FLUID VALVE
1876-03
5360-01-643-0131INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
2212-00
5340-01-643-0135INTERCHANGEABLE
CAP,FILLER OPENING
1869-00
5305-01-643-0149INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
1870-01

Frequently Asked Questions

What is NSN 4820-01-508-4515?

NSN 4820-01-508-4515 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 4820-01-508-4515?

NSN 4820-01-508-4515 has 3 cross-referenced part numbers: 40737-2 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40737-2 PC NO 11 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 1875-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-508-4515?

There are 11 known substitutes for 4820-01-508-4515: 5315-00-290-5330, 4820-01-508-4417, 4820-01-508-4540 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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