PartsTable TECHNICAL DATA SHEET
NSN 4820-01-185-8021Government record, cited

Cap, Valve4820-01-185-8021

NSN 4820-01-185-8021 · NIIN 011858021 · Part number N42252
Leslie Controls, Inc. Dba Leslie Controls Inc · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 35795
Government record, cited
NSN 4820-01-185-8021 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-185-8021. Manufacturer of record part number: N42252.
Also searched as  4820-01-185-8021 · 4820011858021 · NIIN 011858021 · 01-185-8021 · FSC 4820 Valves, Nonpowered · CAGE 35795 · N42252 · 42252 · 42252
Nearby stock numbers  ·
Features
  • Cap,valve — FSC 4820
  • 1 manufacturer part number on file
  • Manufacturer of record: Leslie Controls, Inc. Dba Leslie Controls Inc
Identification
  • NSN: 4820-01-185-8021
  • NIIN: 011858021
  • FSC: 4820 — Valves, Nonpowered
  • FSG: 48 — Valves
  • Primary part number: N42252
  • Manufacturer: Leslie Controls, Inc. Dba Leslie Controls Inc
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-185-8021, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Leslie Controls, Inc. Dba Leslie Controls 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-185-8021
Primary Part NumberN42252
Item NameCap,valve
FSC / FSG4820 / 48 — Valves, Nonpowered
ManufacturerLeslie Controls, Inc. Dba Leslie Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5331-01-537-307842252 POSSIBLE MATCH
O-RING
Possible match (shared part number)Tyco Fire Products Lp
5995-01-574-613642252-1 POSSIBLE MATCH
CABLE ASSEMBLY,RADIO FREQUENCY
Possible match (shared part number)Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
5330-01-582-556642252 POSSIBLE MATCH
GASKET
Possible match (shared part number)Westerbeke Corporation
Cross-Reference Index
Part NumberManufacturer
N42252 PRIMARY Leslie Controls, Inc. Dba Leslie Controls Inc (USA)
Reference documents
ReferenceMeaning
42252 5/9 Secondary reference
Leslie Controls, Inc. Dba Leslie Controls Inc
42252 5/9 Secondary reference
Med-Valcon Inc Seal Beach Ca
Related Parts
5331-01-537-3078POSSIBLE MATCH
O-RING
42252
5995-01-574-6136POSSIBLE MATCH
CABLE ASSEMBLY,RADIO FREQUENCY
42252-1
5330-01-582-5566POSSIBLE MATCH
GASKET
42252

Frequently Asked Questions

What is NSN 4820-01-185-8021?

NSN 4820-01-185-8021 is a Cap,valve, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.

What part numbers are listed for NSN 4820-01-185-8021?

NSN 4820-01-185-8021 has 1 manufacturer part number on file: N42252 (Leslie Controls, Inc. Dba Leslie Controls Inc).

What NSN replaces 4820-01-185-8021?

3 possible matches (shared part number, not a government interchangeability claim): 5331-01-537-3078, 5995-01-574-6136, 5330-01-582-5566. Verify interchangeability with system specifications before substitution.

What are the specifications of N42252?

Key specifications for N42252: End Item Identification: VALVE DPHRM CONT PLT OPER. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4820-01-185-8021 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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