PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9-2-1-15Valve,plug

Celtech Corporation Div Use CAGE 65552 for All Orders · NSN 4820-00-541-8159 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-541-8159 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-541-8159. Primary manufacturer part number: 9-2-1-15.
Features
  • Valve,plug — FSC 4820
  • Material: STEEL SEAT
  • Valve Operation Method: MANUAL
  • Bolt Hole Quantity: 4 ALL ENDS
  • Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
  • Flange Face Design: RAISED STRAIGHT ALL ENDS
  • Raised Face Nominal Diameter: 4.125 INCHES ALL ENDS IN
  • Bolt Circle Nominal Diameter: 5.500 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Seat construction
General Description

The Valve,plug, cataloged under National Stock Number 4820-00-541-8159, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Celtech Corporation Div Use CAGE 65552 for All Orders. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-541-8159
Primary Part Number9-2-1-15
Item NameValve,plug
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCeltech Corporation Div Use CAGE 65552 for All Orders
StatusACTIVE
MaterialSTEEL SEAT
Valve Operation MethodMANUAL
Bolt Hole Quantity4 ALL ENDS
Maximum Operating Temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
Flange Face DesignRAISED STRAIGHT ALL ENDS
Raised Face Nominal Diameter4.125 INCHES ALL ENDS IN
Bolt Circle Nominal Diameter5.500 INCHES ALL ENDS IN
MaterialSTEEL STEM
Raised Face Nominal Height0.062 INCHES ALL ENDS IN
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Nominal Thickness0.625 INCHES ALL ENDS IN
MaterialSTEEL BODY
Mounting FacilityTHREADED FASTENER
Bolt Hole Nominal Diameter0.750 INCHES ALL ENDS IN
Nominal Outside Diameter7.000 INCHES ALL ENDS IN
Flange ShapeROUND WITH HOLES ALL ENDS
Connection TypeFLANGE ALL ENDS
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Flow StyleTWO-WAY TWO PORT 90 DEGREE PLUG TURN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-019-991992115 INTERCHANGEABLE
Setscrew
Telemechanics Inc
5310-00-167-0803851230 INTERCHANGEABLE
Washer,flat
Us Army Aviation and Missile Command
6210-00-299-3911 INTERCHANGEABLE
Lens,light
6665-00-406-945008-92115 INTERCHANGEABLE
Tube,amonia Detecto
Mine Safety Appliances Company
5905-00-755-851092115 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Faber Castell Corp
4920-01-300-194892115 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5120-01-368-23035120-01-368-2303 INTERCHANGEABLE
Bit,screwdriver
General Services Administration Federal Supply Service
Cross-Reference Index
Part NumberManufacturer
9-2-1-15 Celtech Corporation Div Use CAGE 65552 for All Orders (USA)
1797F The Walworth Company (USA)
Related Parts
5305-00-019-9919INTERCHANGEABLE
SETSCREW
92115
5310-00-167-0803INTERCHANGEABLE
WASHER,FLAT
851230
6210-00-299-3911INTERCHANGEABLE
LENS,LIGHT
6665-00-406-9450INTERCHANGEABLE
TUBE,AMONIA DETECTO
08-92115
5905-00-755-8510INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
92115
4920-01-300-1948INTERCHANGEABLE
TEST PROGRAM SET
92115
5120-01-368-2303INTERCHANGEABLE
BIT,SCREWDRIVER
5120-01-368-2303

Frequently Asked Questions

What is NSN 4820-00-541-8159?

NSN 4820-00-541-8159 is a Valve,plug, manufactured by Celtech Corporation Div Use CAGE 65552 for All Orders, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-541-8159?

NSN 4820-00-541-8159 has 2 cross-referenced part numbers: 9-2-1-15 (Celtech Corporation Div Use CAGE 65552 for All Orders), 1797F (The Walworth Company).

What NSN replaces 4820-00-541-8159?

There are 7 known substitutes for 4820-00-541-8159: 5305-00-019-9919, 5310-00-167-0803, 6210-00-299-3911 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9-2-1-15?

Key specifications for 9-2-1-15: Material: STEEL SEAT; Valve Operation Method: MANUAL; Bolt Hole Quantity: 4 ALL ENDS; Maximum Operating Temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF. 20 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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