PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66740-1Diaphragm,valve,flat

Jaeger Machine Co · NSN 4820-00-646-6192 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-646-6192 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-646-6192. Primary manufacturer part number: 66740-1.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material: RUBBER CHLOROPRENE CLASS CR
  • 1 verified cross-reference
  • Primary manufacturer: Jaeger Machine Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-646-6192, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Jaeger Machine Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-646-6192
Primary Part Number66740-1
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerJaeger Machine Co
StatusACTIVE
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2530-00-773-5331A5-322W205 INTERCHANGEABLE
Hub
Meritor Industrial Products, Llc
4720-01-318-1195845-5200017 ITEM 896 INTERCHANGEABLE
Hose Assembly,nonmetallic
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
66740-1 Jaeger Machine Co (USA)
Related Parts
2530-00-773-5331INTERCHANGEABLE
HUB
A5-322W205
4720-01-318-1195INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
845-5200017 ITEM 896

Frequently Asked Questions

What is NSN 4820-00-646-6192?

NSN 4820-00-646-6192 is a Diaphragm,valve,flat, manufactured by Jaeger Machine Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-646-6192?

NSN 4820-00-646-6192 has 1 cross-referenced part number: 66740-1 (Jaeger Machine Co).

What NSN replaces 4820-00-646-6192?

There are 2 known substitutes for 4820-00-646-6192: 2530-00-773-5331, 4720-01-318-1195. Verify interchangeability with system specifications before substitution.

What are the specifications of 66740-1?

Key specifications for 66740-1: Material: RUBBER CHLOROPRENE CLASS CR. 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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