PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2551Flapper,rubber

Reed-Cromex Corp · NSN 4820-00-484-0673 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-484-0673 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-484-0673. Primary manufacturer part number: 2551.
Features
  • Flapper,rubber — FSC 4820
  • General Characteristics Item Description: FURNISHED WITH STAINLESS STEEL CHAIN AND HOOK,RUBBER FLUSH VALVE
  • 5 verified cross-references
  • Primary manufacturer: Reed-Cromex Corp
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Flapper,rubber, cataloged under National Stock Number 4820-00-484-0673, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Reed-Cromex Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN4820-00-484-0673
Primary Part Number2551
Item NameFlapper,rubber
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerReed-Cromex Corp
StatusACTIVE
General Characteristics Item DescriptionFURNISHED WITH STAINLESS STEEL CHAIN AND HOOK,RUBBER FLUSH VALVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-082-4939 INTERCHANGEABLE
Terminal,lug
5905-00-105-7564 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
3110-00-155-6252 INTERCHANGEABLE
Bearing,ball,annular
5895-00-166-79892551 INTERCHANGEABLE
Control,recorder
Gifft T H Co Inc
4730-00-169-409875-2-0 INTERCHANGEABLE
Coupling,clamp,pipe
Victaulic Company of America Inc Dba Victaulic Company of America
6640-00-241-6520 INTERCHANGEABLE
Pipet,serological
6640-00-437-800037004-5 INTERCHANGEABLE
Pipet,volumetric
Gerresheimer Glass Inc Div Gerresheimer Glass
5930-00-756-0232 INTERCHANGEABLE
Switch,rotary
5985-00-759-8877 INTERCHANGEABLE
Attenuator Subassembly
3020-00-819-8848 INTERCHANGEABLE
Gear,spur
Cross-Reference Index
Part NumberManufacturer
2551 Reed-Cromex Corp (USA)
7520 Interline Brands, Inc. Dba J. a. Sexauer (USA)
075200 Interline Brands, Inc. Dba J. a. Sexauer (USA)
7520 Beatrice Foods Co Dearborn Brass Div (USA)
7520 Beatrice Home Specialties Inc Div of Beatrice Companies Inc (USA)
Related Parts
5940-00-082-4939INTERCHANGEABLE
TERMINAL,LUG
5905-00-105-7564INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
3110-00-155-6252INTERCHANGEABLE
BEARING,BALL,ANNULAR
5895-00-166-7989INTERCHANGEABLE
CONTROL,RECORDER
2551
4730-00-169-4098INTERCHANGEABLE
COUPLING,CLAMP,PIPE
75-2-0
6640-00-241-6520INTERCHANGEABLE
PIPET,SEROLOGICAL
6640-00-437-8000INTERCHANGEABLE
PIPET,VOLUMETRIC
37004-5
5930-00-756-0232INTERCHANGEABLE
SWITCH,ROTARY
5985-00-759-8877INTERCHANGEABLE
ATTENUATOR SUBASSEMBLY
3020-00-819-8848INTERCHANGEABLE
GEAR,SPUR
6135-00-835-7210INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
13A
5935-00-869-8104INTERCHANGEABLE
ADAPTER,CONNECTOR
103-0032-00

Frequently Asked Questions

What is NSN 4820-00-484-0673?

NSN 4820-00-484-0673 is a Flapper,rubber, manufactured by Reed-Cromex Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-484-0673?

NSN 4820-00-484-0673 has 5 cross-referenced part numbers: 2551 (Reed-Cromex Corp), 7520 (Interline Brands, Inc. Dba J. a. Sexauer), 075200 (Interline Brands, Inc. Dba J. a. Sexauer), 7520 (Beatrice Foods Co Dearborn Brass Div), 7520 (Beatrice Home Specialties Inc Div of Beatrice Companies Inc).

What NSN replaces 4820-00-484-0673?

There are 12 known substitutes for 4820-00-484-0673: 5940-00-082-4939, 5905-00-105-7564, 3110-00-155-6252 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2551?

Key specifications for 2551: General Characteristics Item Description: FURNISHED WITH STAINLESS STEEL CHAIN AND HOOK,RUBBER FLUSH VALVE. 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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