PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C154Seat,valve

Hunt Valve Company, Inc. · NSN 4820-01-119-9482 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-119-9482 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-119-9482. Primary manufacturer part number: C154.
Features
  • Seat,valve — FSC 4820
  • Flange Seat to Disk End Height: 0.165 INCHES NOMINAL IN
  • Thread Series Designator: UN SINGLE THREADED PORTION
  • Style Designator: THREADED FLANGED
  • Material: NICKEL ALLOY OVERALL
  • Thread Class: 2A SINGLE THREADED PORTION A
  • Nominal Thread Size: 1.812 INCHES SINGLE THREADED PORTION IN
  • Flange Diameter: 2.000 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-119-9482, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 12 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-119-9482
Primary Part NumberC154
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Flange Seat to Disk End Height0.165 INCHES NOMINAL IN
Thread Series DesignatorUN SINGLE THREADED PORTION
Style DesignatorTHREADED FLANGED
MaterialNICKEL ALLOY OVERALL
Thread Class2A SINGLE THREADED PORTION A
Nominal Thread Size1.812 INCHES SINGLE THREADED PORTION IN
Flange Diameter2.000 INCHES NOMINAL IN
Body Inside Diameter1.500 INCHES NOMINAL IN
Under Flange Height0.312 INCHES NOMINAL IN
Thread Quantity Per Inch12 SINGLE THREADED PORTION
Thread Length0.250 INCHES NOMINAL SINGLE THREADED PORTION IN
Seating Surface ShapeFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5340-00-244-7325C15499 INTERCHANGEABLE
Seal,strapping
Band-It-Idex Inc Unit of Idex Corp
6105-00-248-3867C48H501 INTERCHANGEABLE
Motor,alternating Current
Reliance Electric Company Dba Reliance & Dodge Brands
2940-00-364-4956SA15417 INTERCHANGEABLE
Filter Element,fluid
Parker-Hannifin Corporation
3040-00-462-4900C154 INTERCHANGEABLE
Clamp,hub
Designatronics Incorporated Div Sterling Instruments Div
4310-00-779-0158239-T-350042 INTERCHANGEABLE
Gasket,back Cap
Apd Cryogenics Inc
5140-01-049-7637C154 INTERCHANGEABLE
Roll,tools and Accessories
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
NB-0102-H-0150 PART18 Pima Valve, Llc (USA)
C154 PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
5340-00-244-7325INTERCHANGEABLE
SEAL,STRAPPING
C15499
6105-00-248-3867INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
C48H501
2940-00-364-4956INTERCHANGEABLE
FILTER ELEMENT,FLUID
SA15417
3040-00-462-4900INTERCHANGEABLE
CLAMP,HUB
C154
4310-00-779-0158INTERCHANGEABLE
GASKET,BACK CAP
239-T-350042
5140-01-049-7637INTERCHANGEABLE
ROLL,TOOLS AND ACCESSORIES
C154

Frequently Asked Questions

What is NSN 4820-01-119-9482?

NSN 4820-01-119-9482 is a Seat,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-119-9482?

NSN 4820-01-119-9482 has 2 cross-referenced part numbers: NB-0102-H-0150 PART18 (Pima Valve, Llc), C154 (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-119-9482?

There are 6 known substitutes for 4820-01-119-9482: 5340-00-244-7325, 6105-00-248-3867, 2940-00-364-4956 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C154?

Key specifications for C154: Flange Seat to Disk End Height: 0.165 INCHES NOMINAL IN; Thread Series Designator: UN SINGLE THREADED PORTION; Style Designator: THREADED FLANGED; Material: NICKEL ALLOY OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com