PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-48558 PIECE 2 1/2INCap,valve

Hunt Valve Company, Inc. · NSN 4820-01-104-5198 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-104-5198 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-104-5198. Primary manufacturer part number: D-48558 PIECE 2 1/2IN.
Features
  • Cap,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-104-5198, 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.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersWalworth-Aloyco (CAGE 98518); Hunt Valve Company, Inc. (CAGE 11859)
Technical Specifications
ParameterValue
NSN4820-01-104-5198
Primary Part NumberD-48558 PIECE 2 1/2IN
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-01-104-3862D-48558 PIECE 2 1 INCH INTERCHANGEABLE
Cap,valve
Hunt Valve Company, Inc.
4820-01-105-3514 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
D-48558 Walworth-Aloyco (USA)
D-48558 PIECE 2 1/2IN Walworth-Aloyco (USA)
D-48558 PIECE 2 1/2IN PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
4820-01-104-3862INTERCHANGEABLE
CAP,VALVE
D-48558 PIECE 2 1 INCH
4820-01-105-3514INTERCHANGEABLE
VALVE,CHECK

Frequently Asked Questions

What is NSN 4820-01-104-5198?

NSN 4820-01-104-5198 is a Cap,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-104-5198?

NSN 4820-01-104-5198 has 3 cross-referenced part numbers: D-48558 (Walworth-Aloyco), D-48558 PIECE 2 1/2IN (Walworth-Aloyco), D-48558 PIECE 2 1/2IN (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-104-5198?

There are 2 known substitutes for 4820-01-104-5198: 4820-01-104-3862, 4820-01-105-3514. Verify interchangeability with system specifications before substitution.

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