PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H764Diaphragm,valve,flat

Hammel Dahl Inc · NSN 4820-00-671-7249 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-671-7249 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-671-7249. Primary manufacturer part number: H764.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Outside Diameter: 3.000 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Material Thickness: 0.030 INCHES NOMINAL IN
  • Bolt Circle Diameter: 2.610 INCHES NOMINAL IN
  • Hole Diameter: 0.172 INCHES NOMINAL IN
  • Center Hole Diameter: 0.062 INCHES NOMINAL IN
  • Material: RUBBER FABRIC REINFORCED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Fabric Reinforced construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-671-7249, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hammel Dahl Inc. Government technical data includes 8 verified specifications, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-671-7249
Primary Part NumberH764
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHammel Dahl Inc
StatusACTIVE
Outside Diameter3.000 INCHES NOMINAL IN
Style DesignatorFLAT
Material Thickness0.030 INCHES NOMINAL IN
Bolt Circle Diameter2.610 INCHES NOMINAL IN
Hole Diameter0.172 INCHES NOMINAL IN
Center Hole Diameter0.062 INCHES NOMINAL IN
MaterialRUBBER FABRIC REINFORCED
Bolt Hole Quantity6
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-832-62182028 INTERCHANGEABLE
Key,socket Head Screw
Wta Tool Llc
3020-00-857-0899H7-64 INTERCHANGEABLE
Gear,spur
Roller Bearing Co of America, Inc Div Pic Design
4210-01-003-8825H-88 INTERCHANGEABLE
Main Valve
Mueller Co
5965-01-083-5278 INTERCHANGEABLE
Headphone,dual
6130-01-130-4775H764 INTERCHANGEABLE
Power Supply
Compaq Federal Llc
4110-01-391-3375H-88 INTERCHANGEABLE
Refrigerator,prefabricated
Polar King International, Inc. Dba Polar King International, Inc
4730-01-460-1545 INTERCHANGEABLE
Clamp,hose
7610-01-569-5336H88 INTERCHANGEABLE
Manual,technical
Motorola Solutions, Inc. Dba Motorola Solutions, Inc Div U.s. Federal Government Markets Region
Cross-Reference Index
Part NumberManufacturer
H764 Hammel Dahl Inc (USA)
X33412PC3 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
H88 Hammel Dahl Inc (USA)
Related Parts
5120-00-832-6218INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
2028
3020-00-857-0899INTERCHANGEABLE
GEAR,SPUR
H7-64
4210-01-003-8825INTERCHANGEABLE
MAIN VALVE
H-88
5965-01-083-5278INTERCHANGEABLE
HEADPHONE,DUAL
6130-01-130-4775INTERCHANGEABLE
POWER SUPPLY
H764
4110-01-391-3375INTERCHANGEABLE
REFRIGERATOR,PREFABRICATED
H-88
4730-01-460-1545INTERCHANGEABLE
CLAMP,HOSE
7610-01-569-5336INTERCHANGEABLE
MANUAL,TECHNICAL
H88

Frequently Asked Questions

What is NSN 4820-00-671-7249?

NSN 4820-00-671-7249 is a Diaphragm,valve,flat, manufactured by Hammel Dahl Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-671-7249?

NSN 4820-00-671-7249 has 3 cross-referenced part numbers: H764 (Hammel Dahl Inc), X33412PC3 (Spx Flow Us, Llc Dba Spx Valves & Controls), H88 (Hammel Dahl Inc).

What NSN replaces 4820-00-671-7249?

There are 8 known substitutes for 4820-00-671-7249: 5120-00-832-6218, 3020-00-857-0899, 4210-01-003-8825 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H764?

Key specifications for H764: Outside Diameter: 3.000 INCHES NOMINAL IN; Style Designator: FLAT; Material Thickness: 0.030 INCHES NOMINAL IN; Bolt Circle Diameter: 2.610 INCHES NOMINAL IN. 9 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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