NSN 4820-01-644-3638 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-644-3638. Manufacturer of record part number: TI3.50.
Also searched as4820-01-644-3638 ·
4820016443638 ·
NIIN 016443638 ·
01-644-3638 ·
FSC 4820 Valves, Nonpowered · CAGE 61623 · TI3.50
Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size: 0.500 INCHES IN
Face to Face Distance: 2.172 INCHES IN
Identification
NSN: 4820-01-644-3638
NIIN: 016443638
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: TI3.50
Manufacturer: Nibco Inc Chemtrol Div
General Description
The Valve,check, cataloged under National Stock Number 4820-01-644-3638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Nibco Inc Chemtrol Div. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-644-3638
Primary Part Number
TI3.50
Item Name
Valve,check
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Nibco Inc Chemtrol Div
Status
ACTIVE
Flange Shape
ROUND ALL ENDS
Flange Face Design
PLAIN ALL ENDS
Connection Type
FLANGE ALL ENDS
Style Designator
STRAIGHT THRU FLANGED ENDS
Operating Pressure
200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-644-3638?
NSN 4820-01-644-3638 is a Valve,check, manufactured by Nibco Inc Chemtrol Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-644-3638?
NSN 4820-01-644-3638 has 1 manufacturer part number on file: TI3.50 (Nibco Inc Chemtrol Div).
What are the specifications of TI3.50?
Key specifications for TI3.50: Flange Shape: ROUND ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Connection Type: FLANGE ALL ENDS; Style Designator: STRAIGHT THRU FLANGED ENDS. 9 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-644-3638 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.