PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1A2L1Stem,needle Valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-041-3175 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-041-3175 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-041-3175. Primary manufacturer part number: 1A2L1.
Features
  • Stem,needle Valve — FSC 4820
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS
  • 2 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,needle Valve, cataloged under National Stock Number 4820-01-041-3175, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 1 verified specification, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-041-3175
Primary Part Number1A2L1
Item NameStem,needle Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Reference Number Differentiating CharacteristicsQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3030-00-011-8747BX120 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5960-00-188-3535 INTERCHANGEABLE
Electron Tube
Cross-Reference Index
Part NumberManufacturer
1A2L1 Naval Inventory Control Point Mechanicsburg (USA)
1B2-3 Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA)
Related Parts
3030-00-011-8747INTERCHANGEABLE
BELT,V
BX120
5960-00-188-3535INTERCHANGEABLE
ELECTRON TUBE

Frequently Asked Questions

What is NSN 4820-01-041-3175?

NSN 4820-01-041-3175 is a Stem,needle Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-041-3175?

NSN 4820-01-041-3175 has 2 cross-referenced part numbers: 1A2L1 (Naval Inventory Control Point Mechanicsburg), 1B2-3 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).

What NSN replaces 4820-01-041-3175?

There are 2 known substitutes for 4820-01-041-3175: 3030-00-011-8747, 5960-00-188-3535. Verify interchangeability with system specifications before substitution.

What are the specifications of 1A2L1?

Key specifications for 1A2L1: Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS. 1 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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