The Disk,valve, cataloged under National Stock Number 4820-00-036-1979, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-00-036-1979
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
Outside Diameter
7.750 INCHES NOMINAL IN
Inside Diameter
4.500 INCHES NOMINAL IN
Material
STEEL
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
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-00-562-795685-506POSSIBLE MATCH
NUT,PLAIN,ROUND
Possible match (shared part number)Bogen Communications Inc
5325-00-689-694185-506POSSIBLE MATCH
RING,RETAINING
Possible match (shared part number)Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5910-00-944-248785506POSSIBLE MATCH
CAPACITOR
Possible match (shared part number)Mallory Sonalert Products, Inc.
5962-01-258-2339POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)
5962-01-305-1033POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)
5805-01-367-5341855-06POSSIBLE MATCH
TELEPHONE SET
Possible match (shared part number)Hose-Mccann Telephone Co, Inc
5962-01-407-3927POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
85506
5/9Secondary reference
Ashcroft Inc Dba Heise
85506
3/9Design control — primary reference
Dresser, Inc. Dba Dresser Equipment Group Div Industrial Valve Operations, Dresse
Related Parts
5310-00-562-7956POSSIBLE MATCH
NUT,PLAIN,ROUND
85-506
5325-00-689-6941POSSIBLE MATCH
RING,RETAINING
85-506
5910-00-944-2487POSSIBLE MATCH
CAPACITOR
85506
5962-01-258-2339POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
5962-01-305-1033POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
5805-01-367-5341POSSIBLE MATCH
TELEPHONE SET
855-06
5962-01-407-3927POSSIBLE MATCH
MICROCIRCUIT,DIGITAL
Frequently Asked Questions
What is NSN 4820-00-036-1979?
NSN 4820-00-036-1979 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-00-036-1979?
7 possible matches (shared part number, not a government interchangeability claim): 5310-00-562-7956, 5325-00-689-6941, 5910-00-944-2487. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-00-036-1979?
Key specifications for 4820-00-036-1979: Outside Diameter: 7.750 INCHES NOMINAL IN; Inside Diameter: 4.500 INCHES NOMINAL IN; Material: STEEL. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4820-00-036-1979 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.