Disk, Valve4820-01-261-2852

NSN 4820-01-261-2852 · NIIN 012612852

FSC 4820 — Valves, Nonpowered · FSG 48 — Valves

Government record, cited

Also searched as 4820-01-261-2852 · 4820012612852 · NIIN 012612852 · 01-261-2852 · FSC 4820 Valves, Nonpowered

Nearby stock numbers ← 4820-01-261-2851 Disk, Valve · 4820-01-261-2934 Valve, Check →

4820-01-261-2852 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Outside Diameter: 3.640 INCHES MINIMUM AND 3.650 INCHES MAXIMUM IN
Supplementary Features: USED ON P/N 65-23822-2,NSN 2995-00-991-9793
Style Designator: BUTTERFLY
Material Document and Classification: AISI 416 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 416 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 416SE FED SPEC 3RD MATERIAL RESPONSE
Material: STEEL COMP 416 OR STEEL COMP 416SE

Identification

NSN: 4820-01-261-2852
NIIN: 012612852
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves

General Description

The Disk,valve, cataloged under National Stock Number 4820-01-261-2852, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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	4820-01-261-2852
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Status	ACTIVE
Outside Diameter	3.640 INCHES MINIMUM AND 3.650 INCHES MAXIMUM IN
Supplementary Features	USED ON P/N 65-23822-2,NSN 2995-00-991-9793
Style Designator	BUTTERFLY
Material Document and Classification	AISI 416 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 416 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 416SE FED SPEC 3RD MATERIAL RESPONSE
Material	STEEL COMP 416 OR STEEL COMP 416SE

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

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
65-23821-2	3/2 Design control — primary 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 4820-01-261-2852?

NSN 4820-01-261-2852 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.

What are the specifications of 4820-01-261-2852?

Key specifications for 4820-01-261-2852: Outside Diameter: 3.640 INCHES MINIMUM AND 3.650 INCHES MAXIMUM IN; Supplementary Features: USED ON P/N 65-23822-2,NSN 2995-00-991-9793; Style Designator: BUTTERFLY; Material Document and Classification: AISI 416 ASSN STD 1ST MATERIAL RESPONSE OR QQ-S-763, CLASS 416 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-763, CLASS 416SE FED SPEC 3RD MATERIAL RESPONSE. 5 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-261-2852 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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