PartsTable TECHNICAL DATA SHEET

NSN 4820-01-486-8267Government record, cited

Valve, Relief, Pressure and Temper4820-01-486-8267

NSN 4820-01-486-8267 · NIIN 014868267 · Part number 8399-1-000

Circor Aerospace Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 1DRT7

Government record, cited

NSN 4820-01-486-8267 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-486-8267. Manufacturer of record part number: 8399-1-000.

Also searched as 4820-01-486-8267 · 4820014868267 · NIIN 014868267 · 01-486-8267 · FSC 4820 Valves, Nonpowered · CAGE 1DRT7 · 8399-1-000 · 6935318

Nearby stock numbers ← 4820-01-486-7928 Valve, Regulating, Fluid Pressure · 4820-01-486-8295 →

4820-01-486-8267 — Valves, Nonpowered

Features

Valve,relief,pressure and Temper — FSC 4820
1 manufacturer part number on file
Manufacturer of record: Circor Aerospace Inc

Identification

NSN: 4820-01-486-8267
NIIN: 014868267
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 8399-1-000
Manufacturer: Circor Aerospace Inc

General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-486-8267, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Aerospace Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts

Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 — Valves, Nonpowered (FSG 48)
Manufacturers	Circor Aerospace Inc (CAGE 1DRT7)

Technical Specifications

Parameter	Value
NSN	4820-01-486-8267
Primary Part Number	8399-1-000
Item Name	Valve,relief,pressure and Temper
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Circor Aerospace Inc
Status	ACTIVE

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
8399-1-000 PRIMARY	Circor Aerospace Inc (USA)

Reference documents

Reference	Meaning
8399-1-000	5/9 Secondary reference Acc Partners Inc
6935318	7/2 Vendor item drawing reference Naval Sea Systems Command

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 4820-01-486-8267?

NSN 4820-01-486-8267 is a Valve,relief,pressure and Temper, manufactured by Circor Aerospace Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-486-8267?

NSN 4820-01-486-8267 has 1 manufacturer part number on file: 8399-1-000 (Circor Aerospace Inc).

Is NSN 4820-01-486-8267 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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