PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B12-2054P-02TSGValve,gate

Velan Valve Corp. · NSN 4820-01-266-3630 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-266-3630 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-266-3630. Primary manufacturer part number: B12-2054P-02TSG.
Features
  • Valve,gate — FSC 4820
  • Stem Type: NONRISING
  • Connection Type: BUTT WELD PIPE
  • Bonnet Attachment Method: PRESSURE SEAL, RING TYPE
  • Inlet Relationship with Outlet: IDENTICAL
  • Material: STEEL STEM
  • Furnished Items and Quantity: 1 HANDWHEEL
  • Material: STEEL SEAT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Stem construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-01-266-3630, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-266-3630
Primary Part NumberB12-2054P-02TSG
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusCANCELLED
Stem TypeNONRISING
Connection TypeBUTT WELD PIPE
Bonnet Attachment MethodPRESSURE SEAL, RING TYPE
Inlet Relationship with OutletIDENTICAL
MaterialSTEEL STEM
Furnished Items and Quantity1 HANDWHEEL
MaterialSTEEL SEAT
Valve Size4.000 INCHES IN
MaterialSTEEL DISK
Valve Operation MethodMANUAL
MaterialSTEEL BODY
Nominal Pipe Size Accommodated4.000 INCHES IN
Bonnet TypeOUTSIDE SCREW-YOKE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
4730-00-279-2435835-015 INTERCHANGEABLE
Coupling,pipe
Nibco Inc Chemtrol Div
4820-00-862-5033 INTERCHANGEABLE
Valve,gate
4820-01-156-71639015-007-148 INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
4820-01-237-28918995-005-031-S INTERCHANGEABLE
Disk,valve
Velan Valve Corp.
4730-01-251-09873835-015 INTERCHANGEABLE
Coupling,pipe
Ryan Herco Products Corp
4820-01-253-35668350-15 ITEM 8 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
4820-01-461-05609015-007-031-S INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
5310-01-466-05128350-15 ITEM 17B INTERCHANGEABLE
Nut,plain,hexagon
Velan Valve Corp.
4820-01-466-41589015-007-033-S INTERCHANGEABLE
Seat,valve
Velan Valve Corp.
4820-01-466-43289095-005-339 INTERCHANGEABLE
Stem,fluid Valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
8350-15 Velan Valve Corp. (USA)
B12-2054P-02TSG PRIMARY Velan Valve Corp. (USA)
B12-2054P-02TS SSH 80 Velan Valve Corp. (USA)
B12-2054P-02TS Velan Valve Corp. (USA)
Related Parts
4730-00-279-2435INTERCHANGEABLE
COUPLING,PIPE
835-015
4820-00-862-5033INTERCHANGEABLE
VALVE,GATE
4820-01-156-7163INTERCHANGEABLE
SEAT,VALVE
9015-007-148
4820-01-237-2891INTERCHANGEABLE
DISK,VALVE
8995-005-031-S
4730-01-251-0987INTERCHANGEABLE
COUPLING,PIPE
3835-015
4820-01-253-3566INTERCHANGEABLE
STEM,FLUID VALVE
8350-15 ITEM 8
4820-01-461-0560INTERCHANGEABLE
SEAT,VALVE
9015-007-031-S
5310-01-466-0512INTERCHANGEABLE
NUT,PLAIN,HEXAGON
8350-15 ITEM 17B
4820-01-466-4158INTERCHANGEABLE
SEAT,VALVE
9015-007-033-S
4820-01-466-4328INTERCHANGEABLE
STEM,FLUID VALVE
9095-005-339

Frequently Asked Questions

What is NSN 4820-01-266-3630?

NSN 4820-01-266-3630 is a Valve,gate, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-266-3630?

NSN 4820-01-266-3630 has 4 cross-referenced part numbers: 8350-15 (Velan Valve Corp.), B12-2054P-02TSG (Velan Valve Corp.), B12-2054P-02TS SSH 80 (Velan Valve Corp.), B12-2054P-02TS (Velan Valve Corp.).

What NSN replaces 4820-01-266-3630?

There are 10 known substitutes for 4820-01-266-3630: 4730-00-279-2435, 4820-00-862-5033, 4820-01-156-7163 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B12-2054P-02TSG?

Key specifications for B12-2054P-02TSG: Stem Type: NONRISING; Connection Type: BUTT WELD PIPE; Bonnet Attachment Method: PRESSURE SEAL, RING TYPE; Inlet Relationship with Outlet: IDENTICAL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-266-3630 still in active supply?

NSN 4820-01-266-3630 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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