PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

628-2-6Valve,relief Safe

Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit · NSN 4820-00-045-5677 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-045-5677 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-045-5677. Primary manufacturer part number: 628-2-6.
Features
  • Valve,relief Safe — 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,relief Safe, cataloged under National Stock Number 4820-00-045-5677, 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,relief Safe
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersTeledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (CAGE 86768)
Technical Specifications
ParameterValue
NSN4820-00-045-5677
Primary Part Number628-2-6
Item NameValve,relief Safe
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
5330-00-362-367515133A INTERCHANGEABLE
Gasket
Uts Systems Llc
1550-01-585-160762148 INTERCHANGEABLE
Unmanned Aircraft System
Aerovironment, Inc.
Cross-Reference Index
Part NumberManufacturer
628-2-6 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
Related Parts
5330-00-362-3675INTERCHANGEABLE
GASKET
15133A
1550-01-585-1607INTERCHANGEABLE
UNMANNED AIRCRAFT SYSTEM
62148

Frequently Asked Questions

What is NSN 4820-00-045-5677?

NSN 4820-00-045-5677 is a Valve,relief Safe, 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 4820-00-045-5677?

NSN 4820-00-045-5677 has 1 cross-referenced part number: 628-2-6 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit).

What NSN replaces 4820-00-045-5677?

There are 2 known substitutes for 4820-00-045-5677: 5330-00-362-3675, 1550-01-585-1607. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com