PartsTable TECHNICAL DATA SHEET

NSN 4820-01-166-8705Government record, cited

Seat, Valve4820-01-166-8705

NSN 4820-01-166-8705 · NIIN 011668705 · Part number 1209433

Idsc Holdings Dba Equiserv Dba Equiserv · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 50492

Government record, cited

NSN 4820-01-166-8705 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-166-8705. Manufacturer of record part number: 1209433.

Also searched as 4820-01-166-8705 · 4820011668705 · NIIN 011668705 · 01-166-8705 · FSC 4820 Valves, Nonpowered · CAGE 50492 · 1209433

Nearby stock numbers ← 4820-01-166-8704 Seat, Valve · 4820-01-166-8795 Regulator, Thermostatic Temperatu →

4820-01-166-8705 — Valves, Nonpowered

Features

Seat,valve — FSC 4820
Body Outside Diameter: 1.450 INCHES NOMINAL IN
Style Designator: PLAIN
Body Inside Diameter: 1.000 INCHES NOMINAL IN
Material: STEEL OVERALL
Seating Surface Shape: FLAT
1 manufacturer part number on file
Manufacturer of record: Idsc Holdings Dba Equiserv Dba Equiserv

Identification

NSN: 4820-01-166-8705
NIIN: 011668705
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 1209433
Manufacturer: Idsc Holdings Dba Equiserv Dba Equiserv

General Description

The Seat,valve, cataloged under National Stock Number 4820-01-166-8705, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Idsc Holdings Dba Equiserv Dba Equiserv. Government technical data includes 5 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	4820-01-166-8705
Primary Part Number	1209433
Item Name	Seat,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Idsc Holdings Dba Equiserv Dba Equiserv
Status	ACTIVE
Body Outside Diameter	1.450 INCHES NOMINAL IN
Style Designator	PLAIN
Body Inside Diameter	1.000 INCHES NOMINAL IN
Material	STEEL OVERALL
Seating Surface Shape	FLAT

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
1209433 PRIMARY	Idsc Holdings Dba Equiserv Dba Equiserv (USA)

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 4820-01-166-8705?

NSN 4820-01-166-8705 is a Seat,valve, manufactured by Idsc Holdings Dba Equiserv Dba Equiserv, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-166-8705?

NSN 4820-01-166-8705 has 1 manufacturer part number on file: 1209433 (Idsc Holdings Dba Equiserv Dba Equiserv).

What are the specifications of 1209433?

Key specifications for 1209433: Overall Height: 0.982 INCHES NOMINAL IN; Body Outside Diameter: 1.450 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 1.000 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-166-8705 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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