PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3911-2-3Cap,valve

Tactair Fluid Controls Inc · NSN 1650-00-943-2020 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-943-2020 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-943-2020. Primary manufacturer part number: 3911-2-3.
Features
  • Cap,valve — FSC 1650
  • 2 verified cross-references
  • Primary manufacturer: Tactair Fluid Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 1650-00-943-2020, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Tactair Fluid Controls Inc. This item has 2 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.

Catalog Facts
Item NameCap,valve
FSC / FSG1650 — No Item Name Available (FSG 16)
ManufacturersTactair Fluid Controls Inc (CAGE 70236); Tactair Fluid Controls Inc Phoenix Controls Div (CAGE 57817)
Technical Specifications
ParameterValue
NSN1650-00-943-2020
Primary Part Number3911-2-3
Item NameCap,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerTactair Fluid Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5325-00-067-922212R1-1AA INTERCHANGEABLE
Receptacle,turnlock Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
2915-00-485-0342 INTERCHANGEABLE
Primer Asy
2805-01-200-4539391123 INTERCHANGEABLE
Hook and Rivet
Brp Us Inc
5306-01-228-140239112-3 INTERCHANGEABLE
Bolt,externally Relieved Body
Rockwell Collins, Inc. Dba Rc Displays Systems
6750-01-427-4031 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
3911-2-3 PRIMARY Tactair Fluid Controls Inc (USA)
3911-2-3 Tactair Fluid Controls Inc Phoenix Controls Div (USA)
Related Parts
5325-00-067-9222INTERCHANGEABLE
RECEPTACLE,TURNLOCK FASTENER
12R1-1AA
2915-00-485-0342INTERCHANGEABLE
PRIMER ASY
2805-01-200-4539INTERCHANGEABLE
HOOK AND RIVET
391123
5306-01-228-1402INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
39112-3
6750-01-427-4031INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 1650-00-943-2020?

NSN 1650-00-943-2020 is a Cap,valve, manufactured by Tactair Fluid Controls Inc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-943-2020?

NSN 1650-00-943-2020 has 2 cross-referenced part numbers: 3911-2-3 (Tactair Fluid Controls Inc), 3911-2-3 (Tactair Fluid Controls Inc Phoenix Controls Div).

What NSN replaces 1650-00-943-2020?

There are 5 known substitutes for 1650-00-943-2020: 5325-00-067-9222, 2915-00-485-0342, 2805-01-200-4539 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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