PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9000-2129 PIECE 8Ring,stem Disk,valve

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4820-01-214-9006 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-214-9006 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-214-9006. Primary manufacturer part number: 9000-2129 PIECE 8.
Features
  • Ring,stem Disk,valve — FSC 4820
  • General Characteristics Item Description: NICKEL COPPER ALLOY ASTM-B164 CL B,QQ-N-281;OD 2.250 IN.;O/A LENGTH 1.812 IN.;ONE END 1.710 IN. ID,COUNTERBORE TO 0.156 IN. TO THREADED PART 1.688-16N THDS;OTHER END UNTHD 1.275 TO 1.280 IN. DIA IN
  • 3 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Ring,stem Disk,valve, cataloged under National Stock Number 4820-01-214-9006, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-214-9006
Primary Part Number9000-2129 PIECE 8
Item NameRing,stem Disk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
General Characteristics Item DescriptionNICKEL COPPER ALLOY ASTM-B164 CL B,QQ-N-281;OD 2.250 IN.;O/A LENGTH 1.812 IN.;ONE END 1.710 IN. ID,COUNTERBORE TO 0.156 IN. TO THREADED PART 1.688-16N THDS;OTHER END UNTHD 1.275 TO 1.280 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-900-234426M77-100 ITEM 19 INTERCHANGEABLE
Disk,valve
Naval Ship Systems Command
4820-01-214-71939000-2129 PIECE 10 INTERCHANGEABLE
Disk Retainer and Throttling Ski
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-214-9007DR-33512-PART 5 INTERCHANGEABLE
Retainer,disk,valve
Crane Co Div Valve Div
4820-01-215-32489000-2129 PIECE 3 INTERCHANGEABLE
Seat,valve
Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-219-4908 INTERCHANGEABLE
Valve,globe
Cross-Reference Index
Part NumberManufacturer
9000-2129 PIECE 8 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
30147 PIECE 8 Crane Co Div Valve Div (USA)
9000-2129 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
4820-00-900-2344INTERCHANGEABLE
DISK,VALVE
26M77-100 ITEM 19
4820-01-214-7193INTERCHANGEABLE
DISK RETAINER AND THROTTLING SKI
9000-2129 PIECE 10
4820-01-214-9007INTERCHANGEABLE
RETAINER,DISK,VALVE
DR-33512-PART 5
4820-01-215-3248INTERCHANGEABLE
SEAT,VALVE
9000-2129 PIECE 3
4820-01-219-4908INTERCHANGEABLE
VALVE,GLOBE

Frequently Asked Questions

What is NSN 4820-01-214-9006?

NSN 4820-01-214-9006 is a Ring,stem Disk,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-214-9006?

NSN 4820-01-214-9006 has 3 cross-referenced part numbers: 9000-2129 PIECE 8 (Electric Boat Corporation Div General Dynamics Electric Boat), 30147 PIECE 8 (Crane Co Div Valve Div), 9000-2129 (Electric Boat Corporation Div General Dynamics Electric Boat).

What NSN replaces 4820-01-214-9006?

There are 5 known substitutes for 4820-01-214-9006: 4820-00-900-2344, 4820-01-214-7193, 4820-01-214-9007 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9000-2129 PIECE 8?

Key specifications for 9000-2129 PIECE 8: General Characteristics Item Description: NICKEL COPPER ALLOY ASTM-B164 CL B,QQ-N-281;OD 2.250 IN.;O/A LENGTH 1.812 IN.;ONE END 1.710 IN. ID,COUNTERBORE TO 0.156 IN. TO THREADED PART 1.688-16N THDS;OTHER END UNTHD 1.275 TO 1.280 IN. DIA IN. 1 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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