PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1578-2Valve,plug

Staples & Pfeiffer, Inc. · NSN 4820-01-475-2451 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-475-2451 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-475-2451. Primary manufacturer part number: 1578-2.
Features
  • Valve,plug — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Staples & Pfeiffer, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,plug, cataloged under National Stock Number 4820-01-475-2451, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Staples & Pfeiffer, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,plug
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersStaples & Pfeiffer, Inc. (CAGE 78527)
Technical Specifications
ParameterValue
NSN4820-01-475-2451
Primary Part Number1578-2
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerStaples & Pfeiffer, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-152-05501578 INTERCHANGEABLE
Screw,machine
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
6240-00-155-8687 INTERCHANGEABLE
Lamp,incandescent
5940-00-159-021310-420-2 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5310-00-209-18441578 INTERCHANGEABLE
Washer,flat
H20 Tank Inc U S Motors Div
2810-00-448-66661578 INTERCHANGEABLE
Spacer
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5910-00-667-644947A317 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
6240-00-841-82301578 INTERCHANGEABLE
Lamp,fluorescent
Duro-Test Lighting
4330-01-022-857151578 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
4820-01-075-737815782 INTERCHANGEABLE
Seat,valve
Flowserve Inc
5305-01-083-8740 INTERCHANGEABLE
Screw,shoulder
Cross-Reference Index
Part NumberManufacturer
1578 Staples & Pfeiffer, Inc. (USA)
1578-2 PRIMARY Staples & Pfeiffer, Inc. (USA)
Related Parts
5305-00-152-0550INTERCHANGEABLE
SCREW,MACHINE
1578
6240-00-155-8687INTERCHANGEABLE
LAMP,INCANDESCENT
5940-00-159-0213INTERCHANGEABLE
TERMINAL,STUD
10-420-2
5310-00-209-1844INTERCHANGEABLE
WASHER,FLAT
1578
2810-00-448-6666INTERCHANGEABLE
SPACER
1578
5910-00-667-6449INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
47A317
6240-00-841-8230INTERCHANGEABLE
LAMP,FLUORESCENT
1578
4330-01-022-8571INTERCHANGEABLE
FILTER ELEMENT,FLUID
51578
4820-01-075-7378INTERCHANGEABLE
SEAT,VALVE
15782
5305-01-083-8740INTERCHANGEABLE
SCREW,SHOULDER
3040-01-103-3209INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
15782
5930-01-145-6079INTERCHANGEABLE
SWITCH,ROTARY

Frequently Asked Questions

What is NSN 4820-01-475-2451?

NSN 4820-01-475-2451 is a Valve,plug, manufactured by Staples & Pfeiffer, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-475-2451?

NSN 4820-01-475-2451 has 2 cross-referenced part numbers: 1578 (Staples & Pfeiffer, Inc.), 1578-2 (Staples & Pfeiffer, Inc.).

What NSN replaces 4820-01-475-2451?

There are 12 known substitutes for 4820-01-475-2451: 5305-00-152-0550, 6240-00-155-8687, 5940-00-159-0213 and 9 more. Verify interchangeability with system specifications before substitution.

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