Disk, Valve4820-00-593-7524

NSN 4820-00-593-7524 · NIIN 005937524 · Part number 87986

Ashcroft Inc Dba Heise · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 38056

Government record, cited

NSN 4820-00-593-7524 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-593-7524. Manufacturer of record part number: 87986.

Also searched as 4820-00-593-7524 · 4820005937524 · NIIN 005937524 · 00-593-7524 · FSC 4820 Valves, Nonpowered · CAGE 38056 · 87986 · U6384GITEM1

Nearby stock numbers ← 4820-00-593-7523 · 4820-00-593-7528 →

4820-00-593-7524 — Valves, Nonpowered

Features

Disk,valve — FSC 4820
Shank Diameter: 1.439 INCHES NOMINAL IN
Flange Diameter: 1.844 INCHES NOMINAL IN
Style Designator: POPPET
Material: NICKEL ALLOY
2 manufacturer part numbers on file
Manufacturer of record: Ashcroft Inc Dba Heise

Identification

NSN: 4820-00-593-7524
NIIN: 005937524
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 87986
Manufacturer: Ashcroft Inc Dba Heise

General Description

The Disk,valve, cataloged under National Stock Number 4820-00-593-7524, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ashcroft Inc Dba Heise. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4820-00-593-7524
Primary Part Number	87986
Item Name	Disk,valve
FSC / FSG	4820 / 48 — Valves, Nonpowered
Manufacturer	Ashcroft Inc Dba Heise
Status	ACTIVE
Shank Diameter	1.439 INCHES NOMINAL IN
Flange Diameter	1.844 INCHES NOMINAL IN
Style Designator	POPPET
Material	NICKEL ALLOY

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
87986 PRIMARY	Ashcroft Inc Dba Heise (USA)
U6384GITEM1 PRIMARY	Ashcroft Inc Dba Heise (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 4820-00-593-7524?

NSN 4820-00-593-7524 is a Disk,valve, manufactured by Ashcroft Inc Dba Heise, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-00-593-7524?

NSN 4820-00-593-7524 has 2 manufacturer part numbers on file: 87986 (Ashcroft Inc Dba Heise), U6384GITEM1 (Ashcroft Inc Dba Heise).

What are the specifications of 87986?

Key specifications for 87986: Shank Diameter: 1.439 INCHES NOMINAL IN; Flange Diameter: 1.844 INCHES NOMINAL IN; Overall Height: 0.435 INCHES NOMINAL IN; Style Designator: POPPET. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4820-00-593-7524 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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