NSN 4820-01-187-1949 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-187-1949. Manufacturer of record part number: 11575.
Also searched as4820-01-187-1949 ·
4820011871949 ·
NIIN 011871949 ·
01-187-1949 ·
FSC 4820 Valves, Nonpowered · CAGE 63220 · 11575
The Disk,valve, cataloged under National Stock Number 4820-01-187-1949, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Flowserve Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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
Parameter
Value
NSN
4820-01-187-1949
Primary Part Number
11575
Item Name
Disk,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Flowserve Inc
Status
ACTIVE
Material
STEEL CORROSION RESISTING
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 Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-327-5037115-.75IN.POSSIBLE MATCH
VALVE,GATE
Possible match (shared part number)Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
5999-01-344-6167POSSIBLE MATCH
MOUNTING PAD,ELECTRICAL-ELECTRON
Possible match (shared part number)
5985-01-647-280311575POSSIBLE MATCH
ANTENNA SUBASSEMBLY
Possible match (shared part number)Gatr Technologies, Inc.
NSN 4820-01-187-1949 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-187-1949?
NSN 4820-01-187-1949 has 1 manufacturer part number on file: 11575 (Flowserve Inc).
What NSN replaces 4820-01-187-1949?
3 possible matches (shared part number, not a government interchangeability claim): 4820-01-327-5037, 5999-01-344-6167, 5985-01-647-2803. Verify interchangeability with system specifications before substitution.
What are the specifications of 11575?
Key specifications for 11575: Material: STEEL CORROSION RESISTING. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-187-1949 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.