PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8995-005-031-SDisk,valve

Velan Valve Corp. · NSN 4820-01-237-2891 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-237-2891 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-237-2891. Primary manufacturer part number: 8995-005-031-S.
Features
  • Disk,valve — FSC 4820
  • Pressure Rating: 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
  • Temp Rating: 1000.0 FAHRENHEIT NOMINAL DEGF
  • Taper Length: 4.380 INCHES NOMINAL IN
  • Material: STEEL
  • Style Designator: SOLID WEDGE
  • Taper Major Diameter: 2.760 INCHES NOMINAL IN
  • 5 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-237-2891, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.

Technical Specifications
ParameterValue
NSN4820-01-237-2891
Primary Part Number8995-005-031-S
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Pressure Rating1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS
Temp Rating1000.0 FAHRENHEIT NOMINAL DEGF
Taper Length4.380 INCHES NOMINAL IN
MaterialSTEEL
Style DesignatorSOLID WEDGE
Taper Major Diameter2.760 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
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.
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.
4820-01-266-3630B12-2054P-02TSG INTERCHANGEABLE
Valve,gate
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
8995-005-031-S PRIMARY Velan Valve Corp. (USA)
8350-15 Velan Valve Corp. (USA)
8955-034-031-S Velan Valve Corp. (USA)
8955-005-148 Velan Valve Corp. (USA)
8350-15 ITEM 6D 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
4730-01-251-0987INTERCHANGEABLE
COUPLING,PIPE
3835-015
4820-01-253-3566INTERCHANGEABLE
STEM,FLUID VALVE
8350-15 ITEM 8
4820-01-266-3630INTERCHANGEABLE
VALVE,GATE
B12-2054P-02TSG
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 4820-01-237-2891?

NSN 4820-01-237-2891 is a Disk,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-237-2891?

NSN 4820-01-237-2891 has 5 cross-referenced part numbers: 8995-005-031-S (Velan Valve Corp.), 8350-15 (Velan Valve Corp.), 8955-034-031-S (Velan Valve Corp.), 8955-005-148 (Velan Valve Corp.), 8350-15 ITEM 6D (Velan Valve Corp.).

What NSN replaces 4820-01-237-2891?

There are 10 known substitutes for 4820-01-237-2891: 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 8995-005-031-S?

Key specifications for 8995-005-031-S: Pressure Rating: 1500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LBS; Temp Rating: 1000.0 FAHRENHEIT NOMINAL DEGF; Taper Length: 4.380 INCHES NOMINAL IN; Material: STEEL. 6 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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