PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

482-01Diaphragm,valve,flat

Norgren C a Co · NSN 4820-00-757-2954 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-757-2954 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-757-2954. Primary manufacturer part number: 482-01.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Bolt Hole Quantity: 10
  • Hole Diameter: 0.270 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Bolt Circle Diameter: 4.375 INCHES NOMINAL IN
  • Center Hole Diameter: 0.255 INCHES NOMINAL IN
  • Outside Diameter: 4.875 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-757-2954, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Norgren C a Co. Government technical data includes 8 verified specifications, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-757-2954
Primary Part Number482-01
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNorgren C a Co
StatusACTIVE
Bolt Hole Quantity10
Hole Diameter0.270 INCHES NOMINAL IN
Style DesignatorFLAT
Bolt Circle Diameter4.375 INCHES NOMINAL IN
Center Hole Diameter0.255 INCHES NOMINAL IN
Outside Diameter4.875 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Material Thickness0.050 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-01-138-9617013012-2001 INTERCHANGEABLE
Connector,plug,electrical
Smiths Interconnect Americas, Inc
6515-01-164-289548201 INTERCHANGEABLE
Mask Disposable Sur
Kimberly-Clark Corporation
5955-01-178-231648-20-1 INTERCHANGEABLE
Crystal Unit,quartz
Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled
5306-01-526-792248201 INTERCHANGEABLE
Bolt,machine
Bourns Inc
Cross-Reference Index
Part NumberManufacturer
482-01 PRIMARY Norgren C a Co (USA)
Related Parts
5935-01-138-9617INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
013012-2001
6515-01-164-2895INTERCHANGEABLE
MASK DISPOSABLE SUR
48201
5955-01-178-2316INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
48-20-1
5306-01-526-7922INTERCHANGEABLE
BOLT,MACHINE
48201

Frequently Asked Questions

What is NSN 4820-00-757-2954?

NSN 4820-00-757-2954 is a Diaphragm,valve,flat, manufactured by Norgren C a Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-757-2954?

NSN 4820-00-757-2954 has 1 cross-referenced part number: 482-01 (Norgren C a Co).

What NSN replaces 4820-00-757-2954?

There are 4 known substitutes for 4820-00-757-2954: 5935-01-138-9617, 6515-01-164-2895, 5955-01-178-2316 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 482-01?

Key specifications for 482-01: Bolt Hole Quantity: 10; Hole Diameter: 0.270 INCHES NOMINAL IN; Style Designator: FLAT; Bolt Circle Diameter: 4.375 INCHES NOMINAL IN. 8 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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