PartsTable TECHNICAL DATA SHEET

NSN 4820-01-189-6596Government record, cited

Seat, Valve4820-01-189-6596

NSN 4820-01-189-6596 · NIIN 011896596 · Part number AG77-16-07

Tactair Fluid Controls Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 70236

Government record, cited

NSN 4820-01-189-6596 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-189-6596. Manufacturer of record part number: AG77-16-07.

Also searched as 4820-01-189-6596 · 4820011896596 · NIIN 011896596 · 01-189-6596 · FSC 4820 Valves, Nonpowered · CAGE 70236 · AG77-16-07

Nearby stock numbers ← 4820-01-189-6562 Valve, Expansion · 4820-01-189-6597 Valve, Regulating, Temperature →

4820-01-189-6596 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Material: STEEL CORROSION RESISTING OVERALL
1 manufacturer part number on file
Manufacturer of record: Tactair Fluid Controls Inc

Identification

NSN: 4820-01-189-6596
NIIN: 011896596
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: AG77-16-07
Manufacturer: Tactair Fluid Controls Inc

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-189-6596, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-01-189-6596
Primary Part Number	AG77-16-07
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Tactair Fluid Controls Inc
Status	ACTIVE
Material	STEEL CORROSION RESISTING OVERALL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

Part Number	Manufacturer
AG77-16-07 PRIMARY	Tactair Fluid Controls Inc (USA)

Reference documents

Reference	Meaning
AG77-16-07	5/9 Secondary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 4820 — Valves, Nonpowered

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 4820-01-189-6596?

NSN 4820-01-189-6596 is a Seat,valve, manufactured by Tactair Fluid Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-189-6596?

NSN 4820-01-189-6596 has 1 manufacturer part number on file: AG77-16-07 (Tactair Fluid Controls Inc).

What are the specifications of AG77-16-07?

Key specifications for AG77-16-07: Material: STEEL CORROSION RESISTING OVERALL. 1 specification is documented in the U.S. Government catalog.

Is NSN 4820-01-189-6596 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.

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