PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8265-050-031Cap,valve

Velan Valve Corp. · NSN 4820-01-388-3146 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-388-3146 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-388-3146. Primary manufacturer part number: 8265-050-031.
Features
  • Cap,valve — FSC 4820
  • Reference Number Differentiating Characteristics: QUALITY CONTROLLED IN ACCORDANCE WITH NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS
  • Criticality Code Justification: ZZZY
  • 5 verified cross-references
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-388-3146, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-388-3146
Primary Part Number8265-050-031
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Reference Number Differentiating CharacteristicsQUALITY CONTROLLED IN ACCORDANCE WITH NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-01-493-74198265-050-031 INTERCHANGEABLE
Cap,valve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
8265-050-031 Velan Valve Corp. (USA)
8350-15 ITEM NO 02 Velan Valve Corp. (USA)
7850-032ITEM3S1 Naval Inventory Control Point Mechanicsburg (USA)
7850-032ITEM3 Velan Valve Corp. (USA)
8265-050-031S1 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4820-01-493-7419INTERCHANGEABLE
CAP,VALVE
8265-050-031

Frequently Asked Questions

What is NSN 4820-01-388-3146?

NSN 4820-01-388-3146 is a Cap,valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-388-3146?

NSN 4820-01-388-3146 has 5 cross-referenced part numbers: 8265-050-031 (Velan Valve Corp.), 8350-15 ITEM NO 02 (Velan Valve Corp.), 7850-032ITEM3S1 (Naval Inventory Control Point Mechanicsburg), 7850-032ITEM3 (Velan Valve Corp.), 8265-050-031S1 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4820-01-388-3146?

There is 1 known substitute for 4820-01-388-3146: 4820-01-493-7419. Verify interchangeability with system specifications before substitution.

What are the specifications of 8265-050-031?

Key specifications for 8265-050-031: Reference Number Differentiating Characteristics: QUALITY CONTROLLED IN ACCORDANCE WITH NAVSUP CONTROL INSTRUCTIONS FOR SURF LEVEL 1 ITEMS; Criticality Code Justification: ZZZY. 2 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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