PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

156401Guide,valve Stem

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-682-0517 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-682-0517 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-682-0517. Primary manufacturer part number: 156401.
Features
  • Guide,valve Stem — FSC 4820
  • Material: TUNGSTEN ALLOY
  • Material Document and Classification: ASTM B348 ASSN STD SINGLE MATERIAL RESPONSE
  • 2 verified cross-references
  • Primary manufacturer: Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Tungsten Alloy construction
General Description

The Guide,valve Stem, cataloged under National Stock Number 4820-01-682-0517, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN4820-01-682-0517
Primary Part Number156401
Item NameGuide,valve Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
MaterialTUNGSTEN ALLOY
Material Document and ClassificationASTM B348 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5315-00-171-4350PLGA1564010 INTERCHANGEABLE
Pin,tapered,plain
The Lee Co Dba the Lee Co
4820-00-405-41692271439PC2 INTERCHANGEABLE
Valve,safety Relief
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-691-8143156-401 INTERCHANGEABLE
O-Ring
Graco Inc.
4730-01-190-359821S011903598 INTERCHANGEABLE
Plug,pipe
Naval Sea Systems Command Logistics Support Engineering Activity
Cross-Reference Index
Part NumberManufacturer
DS-B99841 PC NO 350 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
156401 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
5315-00-171-4350INTERCHANGEABLE
PIN,TAPERED,PLAIN
PLGA1564010
4820-00-405-4169INTERCHANGEABLE
VALVE,SAFETY RELIEF
2271439PC2
5331-00-691-8143INTERCHANGEABLE
O-RING
156-401
4730-01-190-3598INTERCHANGEABLE
PLUG,PIPE
21S011903598

Frequently Asked Questions

What is NSN 4820-01-682-0517?

NSN 4820-01-682-0517 is a Guide,valve Stem, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-682-0517?

NSN 4820-01-682-0517 has 2 cross-referenced part numbers: DS-B99841 PC NO 350 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 156401 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).

What NSN replaces 4820-01-682-0517?

There are 4 known substitutes for 4820-01-682-0517: 5315-00-171-4350, 4820-00-405-4169, 5331-00-691-8143 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 156401?

Key specifications for 156401: End Item Identification: VALVE, PRESS; Material: TUNGSTEN ALLOY; Material Document and Classification: ASTM B348 ASSN STD SINGLE MATERIAL RESPONSE; Part Name Assigned by Controlling Agency: GUIDE. 4 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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