PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8512-1-B ITEM 15Stem,fluid Valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-084-8690 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-084-8690 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-084-8690. Primary manufacturer part number: 8512-1-B ITEM 15.
Features
  • Stem,fluid Valve — FSC 4820
  • Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
  • Stem Actuating End Type: THREADED EXTERNALLY
  • Criticality Code Justification: ZZZY
  • Material: STEEL COMP 416
  • 12 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 416 construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-084-8690, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-084-8690
Primary Part Number8512-1-B ITEM 15
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusCANCELLED
Reference Number Differentiating CharacteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
Stem Actuating End TypeTHREADED EXTERNALLY
Criticality Code JustificationZZZY
MaterialSTEEL COMP 416
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5306-00-151-0777 INTERCHANGEABLE
Bolt,machine
3020-01-016-2677400450 INTERCHANGEABLE
Pulley,flat
Telemechanics Inc
4820-01-121-0918400450 INTERCHANGEABLE
Stem,fluid Valve
Hunt Valve Company, Inc.
5330-01-332-7296400450 INTERCHANGEABLE
Retainer,packing
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
Cross-Reference Index
Part NumberManufacturer
8512-1-B ITEM 15 Naval Inventory Control Point Mechanicsburg (USA)
C512-0-B ITEM 15L1 Naval Inventory Control Point Mechanicsburg (USA)
C213-0-B ITEM 15L1 Naval Inventory Control Point Mechanicsburg (USA)
400450L1 Naval Inventory Control Point Mechanicsburg (USA)
C312-1-B ITEM 15L1 Naval Inventory Control Point Mechanicsburg (USA)
C312-1-B ITEM 15 Hunt Valve Company, Inc. (USA)
400450 Hunt Valve Company, Inc. (USA)
C512-0-B ITEM 15 Hunt Valve Company, Inc. (USA)
8512-1-B ITEM 15L1 Naval Inventory Control Point Mechanicsburg (USA)
B512-1-B ITEM 15 Hunt Valve Company, Inc. (USA)
C412-1-B ITEM 15 Hunt Valve Company, Inc. (USA)
C412-1-B ITEM 15L1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5306-00-151-0777INTERCHANGEABLE
BOLT,MACHINE
3020-01-016-2677INTERCHANGEABLE
PULLEY,FLAT
400450
4820-01-121-0918INTERCHANGEABLE
STEM,FLUID VALVE
400450
5330-01-332-7296INTERCHANGEABLE
RETAINER,PACKING
400450

Frequently Asked Questions

What is NSN 4820-01-084-8690?

NSN 4820-01-084-8690 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-084-8690?

NSN 4820-01-084-8690 has 12 cross-referenced part numbers: 8512-1-B ITEM 15 (Naval Inventory Control Point Mechanicsburg), C512-0-B ITEM 15L1 (Naval Inventory Control Point Mechanicsburg), C213-0-B ITEM 15L1 (Naval Inventory Control Point Mechanicsburg), 400450L1 (Naval Inventory Control Point Mechanicsburg), C312-1-B ITEM 15L1 (Naval Inventory Control Point Mechanicsburg) and 7 more.

What NSN replaces 4820-01-084-8690?

There are 4 known substitutes for 4820-01-084-8690: 5306-00-151-0777, 3020-01-016-2677, 4820-01-121-0918 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8512-1-B ITEM 15?

Key specifications for 8512-1-B ITEM 15: Reference Number Differentiating Characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS; Stem Actuating End Type: THREADED EXTERNALLY; Criticality Code Justification: ZZZY; Material: STEEL COMP 416. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-084-8690 still in active supply?

NSN 4820-01-084-8690 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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