PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17743Piston,relief Valve

Napco International Llc Dba Napco International Inc · NSN 2815-00-333-4050 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-00-333-4050 — this item is cataloged by the U.S. Government under National Stock Number 2815-00-333-4050. Primary manufacturer part number: 17743.
Features
  • Piston,relief Valve — FSC 2815
  • 1 verified cross-reference
  • Primary manufacturer: Napco International Llc Dba Napco International Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,relief Valve, cataloged under National Stock Number 2815-00-333-4050, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePiston,relief Valve
FSC / FSG2815 — No Item Name Available (FSG 28)
ManufacturersNapco International Llc Dba Napco International Inc (CAGE 95201)
Technical Specifications
ParameterValue
NSN2815-00-333-4050
Primary Part Number17743
Item NamePiston,relief Valve
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2530-00-339-5405F13387 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
3040-00-986-602417743 INTERCHANGEABLE
Cap,linear Actuating Cylinder
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6150-01-111-171717743 INTERCHANGEABLE
Cable Assembly,power,electrical
Volex, Inc. Dba Volex Power Cord Products Div Volex Inc.
4520-01-219-1954F2254403ES INTERCHANGEABLE
Heating Element,electrical,immer
The Electric Heater Co Dba Hubbell Electric Heater Co.
Cross-Reference Index
Part NumberManufacturer
17743 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
2530-00-339-5405INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
F13387
3040-00-986-6024INTERCHANGEABLE
CAP,LINEAR ACTUATING CYLINDER
17743
6150-01-111-1717INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
17743
4520-01-219-1954INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,IMMER
F2254403ES

Frequently Asked Questions

What is NSN 2815-00-333-4050?

NSN 2815-00-333-4050 is a Piston,relief Valve, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-00-333-4050?

NSN 2815-00-333-4050 has 1 cross-referenced part number: 17743 (Napco International Llc Dba Napco International Inc).

What NSN replaces 2815-00-333-4050?

There are 4 known substitutes for 2815-00-333-4050: 2530-00-339-5405, 3040-00-986-6024, 6150-01-111-1717 and 1 more. Verify interchangeability with system specifications before substitution.

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