PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20378-1Cap,valve

Moog Military Aircraft Llc · NSN 1650-00-991-4228 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-00-991-4228 — this item is cataloged by the U.S. Government under National Stock Number 1650-00-991-4228. Primary manufacturer part number: 20378-1.
Features
  • Cap,valve — FSC 1650
  • 5 verified cross-references
  • Primary manufacturer: Moog Military Aircraft Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 1650-00-991-4228, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Moog Military Aircraft Llc. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 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)
ManufacturersMoog Military Aircraft Llc (CAGE 9P5N5); Moog Inc (CAGE 94697); E-Systems Inc Montek Div Fluid Controls Opns (CAGE 79294); Mid-America Aerotech, Llc (CAGE 0UES3); Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (CAGE 19156)
Technical Specifications
ParameterValue
NSN1650-00-991-4228
Primary Part Number20378-1
Item NameCap,valve
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerMoog Military Aircraft Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-004-3384203781 INTERCHANGEABLE
Gasket
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
3110-00-112-5872203-781 INTERCHANGEABLE
Bearing,roller,needle
Aerocontrolex Group, Inc.
5310-01-462-771944834-26 INTERCHANGEABLE
Washer,flat
Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba
Cross-Reference Index
Part NumberManufacturer
20378-1 PRIMARY Moog Military Aircraft Llc (USA)
20378-1 Moog Inc (USA)
20378-1 E-Systems Inc Montek Div Fluid Controls Opns (USA)
20378-1 Mid-America Aerotech, Llc (USA)
20378-1 Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA)
Related Parts
5330-00-004-3384INTERCHANGEABLE
GASKET
203781
3110-00-112-5872INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
203-781
5310-01-462-7719INTERCHANGEABLE
WASHER,FLAT
44834-26

Frequently Asked Questions

What is NSN 1650-00-991-4228?

NSN 1650-00-991-4228 is a Cap,valve, manufactured by Moog Military Aircraft Llc, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-00-991-4228?

NSN 1650-00-991-4228 has 5 cross-referenced part numbers: 20378-1 (Moog Military Aircraft Llc), 20378-1 (Moog Inc), 20378-1 (E-Systems Inc Montek Div Fluid Controls Opns), 20378-1 (Mid-America Aerotech, Llc), 20378-1 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City).

What NSN replaces 1650-00-991-4228?

There are 3 known substitutes for 1650-00-991-4228: 5330-00-004-3384, 3110-00-112-5872, 5310-01-462-7719. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com