PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1520Ball,valve,ported

P J Valves Inc · NSN 4820-01-244-2557 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-244-2557 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-244-2557. Primary manufacturer part number: A1520.
Features
  • Ball,valve,ported — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: P J Valves Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Ball,valve,ported, cataloged under National Stock Number 4820-01-244-2557, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is P J Valves Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBall,valve,ported
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersP J Valves Inc (CAGE 17062)
Technical Specifications
ParameterValue
NSN4820-01-244-2557
Primary Part NumberA1520
Item NameBall,valve,ported
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerP J Valves Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
8455-00-239-6468 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-00-239-6473 INTERCHANGEABLE
Insignia,shoulder Sleeve
2990-00-374-5334 INTERCHANGEABLE
Shaft Assembly,driv
4320-01-195-5871055D0148P050A INTERCHANGEABLE
Ring,lantern
Circor Naval Solutions Llc Dba Warren Pumps
8455-01-528-9164 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-654-1672 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-700-3571 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1520 P J Valves Inc (USA)
C1529 PC 3 P J Valves Inc (USA)
Related Parts
8455-00-239-6468INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-00-239-6473INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
2990-00-374-5334INTERCHANGEABLE
SHAFT ASSEMBLY,DRIV
4320-01-195-5871INTERCHANGEABLE
RING,LANTERN
055D0148P050A
8455-01-528-9164INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-654-1672INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-700-3571INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 4820-01-244-2557?

NSN 4820-01-244-2557 is a Ball,valve,ported, manufactured by P J Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-244-2557?

NSN 4820-01-244-2557 has 2 cross-referenced part numbers: A1520 (P J Valves Inc), C1529 PC 3 (P J Valves Inc).

What NSN replaces 4820-01-244-2557?

There are 7 known substitutes for 4820-01-244-2557: 8455-00-239-6468, 8455-00-239-6473, 2990-00-374-5334 and 4 more. Verify interchangeability with system specifications before substitution.

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