PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

756 507Relief Valve,regula

Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company · NSN 1660-01-042-4269 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-042-4269 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-042-4269. Primary manufacturer part number: 756 507.
Features
  • Relief Valve,regula — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Relief Valve,regula, cataloged under National Stock Number 1660-01-042-4269, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRelief Valve,regula
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersPiper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (CAGE 77294)
Technical Specifications
ParameterValue
NSN1660-01-042-4269
Primary Part Number756 507
Item NameRelief Valve,regula
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerPiper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6685-00-065-926111-217 INTERCHANGEABLE
Thermostat,flow Control
Actronics Incorporated Dba Actronics Inc
Cross-Reference Index
Part NumberManufacturer
756 507 PRIMARY Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company (USA)
Related Parts
6685-00-065-9261INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
11-217

Frequently Asked Questions

What is NSN 1660-01-042-4269?

NSN 1660-01-042-4269 is a Relief Valve,regula, manufactured by Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-042-4269?

NSN 1660-01-042-4269 has 1 cross-referenced part number: 756 507 (Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company).

What NSN replaces 1660-01-042-4269?

There is 1 known substitute for 1660-01-042-4269: 6685-00-065-9261. Verify interchangeability with system specifications before substitution.

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