PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8571Stem,fluid Valve

Emerson Automation Solutions Final Control Us Lp Div Navy Product Team · NSN 4820-01-127-4015 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-127-4015 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-127-4015. Primary manufacturer part number: 8571.
Features
  • Stem,fluid Valve — FSC 4820
  • Largest Outside Diameter: 0.750 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Material Document and Classification: MIL-B-994 MIL SPEC SINGLE MATERIAL RESPONSE
  • 7 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 Copper Alloy construction
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-127-4015, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-127-4015
Primary Part Number8571
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEmerson Automation Solutions Final Control Us Lp Div Navy Product Team
StatusACTIVE
Largest Outside Diameter0.750 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Material Document and ClassificationMIL-B-994 MIL SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2990-00-019-0459T-8571 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
2805-00-356-0983 INTERCHANGEABLE
Gage,oil Level Bayo
2805-00-561-55608571 INTERCHANGEABLE
Spring,helical,comp
Brinkley Technology Group Llc Dba Hercules Manufacturing
6130-00-934-16278571 INTERCHANGEABLE
Power Supply
Centroid, Inc. Dba Centroid Inc
5895-01-074-51108571 INTERCHANGEABLE
Detector,radio Frequency
Telonic Berkeley, Inc. Dba Telonic Berkeley
5120-01-128-3804 INTERCHANGEABLE
Wrench,open End
6220-01-201-9970249-08571 INTERCHANGEABLE
Light,marker,clearance
Rogers Brothers Corp
6670-01-310-3516 INTERCHANGEABLE
Scale,weighing
7310-01-371-01418571 INTERCHANGEABLE
Coffee Maker,automatic
Bloomfield Industries
5325-01-390-8411857-1 INTERCHANGEABLE
Ring,retaining
Globe Food Equipment Company
Cross-Reference Index
Part NumberManufacturer
8571 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
8571 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8571-4 PRIMARY Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
E8571G51M Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8571-4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8571 PIECE 4 Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA)
8571 PIECE 4 Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA)
Related Parts
2990-00-019-0459INTERCHANGEABLE
MUFFLER,EXHAUST
T-8571
2805-00-356-0983INTERCHANGEABLE
GAGE,OIL LEVEL BAYO
2805-00-561-5560INTERCHANGEABLE
SPRING,HELICAL,COMP
8571
6130-00-934-1627INTERCHANGEABLE
POWER SUPPLY
8571
5895-01-074-5110INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
8571
5120-01-128-3804INTERCHANGEABLE
WRENCH,OPEN END
6220-01-201-9970INTERCHANGEABLE
LIGHT,MARKER,CLEARANCE
249-08571
6670-01-310-3516INTERCHANGEABLE
SCALE,WEIGHING
7310-01-371-0141INTERCHANGEABLE
COFFEE MAKER,AUTOMATIC
8571
5325-01-390-8411INTERCHANGEABLE
RING,RETAINING
857-1
6540-01-565-0585INTERCHANGEABLE
INSERT,OPTICAL,CHEMICAL-BIOLOGIC
6515-01-573-2291INTERCHANGEABLE
GUIDEWIRE,FIXATION IMPLANT
8571

Frequently Asked Questions

What is NSN 4820-01-127-4015?

NSN 4820-01-127-4015 is a Stem,fluid Valve, 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 4820-01-127-4015?

NSN 4820-01-127-4015 has 7 cross-referenced part numbers: 8571 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 8571 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8571-4 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), E8571G51M (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8571-4 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby) and 2 more.

What NSN replaces 4820-01-127-4015?

There are 12 known substitutes for 4820-01-127-4015: 2990-00-019-0459, 2805-00-356-0983, 2805-00-561-5560 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8571?

Key specifications for 8571: Largest Outside Diameter: 0.750 INCHES NOMINAL IN; Material: COPPER ALLOY; Material Document and Classification: MIL-B-994 MIL SPEC SINGLE MATERIAL RESPONSE; Overall Length: 6.625 INCHES NOMINAL IN. 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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