PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-660-2Valve

Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit · NSN 4820-00-861-5501 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-861-5501 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-861-5501. Primary manufacturer part number: 4-660-2.
Features
  • Valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve, cataloged under National Stock Number 4820-00-861-5501, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit. This item has 1 commercial cross-reference from 1 manufacturer, 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 NameValve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTeledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (CAGE 86768)
Technical Specifications
ParameterValue
NSN4820-00-861-5501
Primary Part Number4-660-2
Item NameValve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTeledyne Industries Inc Teledyne Fluid Systems Republic Business Unit
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3950-00-481-9459462 INTERCHANGEABLE
Winch,drum,hand Operated
Thern Inc
5133-01-045-5854 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
4-660-2 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
Related Parts
3950-00-481-9459INTERCHANGEABLE
WINCH,DRUM,HAND OPERATED
462
5133-01-045-5854INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 4820-00-861-5501?

NSN 4820-00-861-5501 is a Valve, manufactured by Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-861-5501?

NSN 4820-00-861-5501 has 1 cross-referenced part number: 4-660-2 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).

What NSN replaces 4820-00-861-5501?

There are 2 known substitutes for 4820-00-861-5501: 3950-00-481-9459, 5133-01-045-5854. Verify interchangeability with system specifications before substitution.

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