NSN 4820-01-189-7146 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-189-7146. Manufacturer of record part number: 102938-1.
Manufacturer of record: Rtx Corporation Div Pratt & Whitney
Identification
NSN: 4820-01-189-7146
NIIN: 011897146
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 102938-1
Manufacturer: Rtx Corporation Div Pratt & Whitney
General Description
The Valve,regulting, cataloged under National Stock Number 4820-01-189-7146, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Valve,regulting
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Rtx Corporation Div Pratt & Whitney (CAGE 55820)
Technical Specifications
Parameter
Value
NSN
4820-01-189-7146
Primary Part Number
102938-1
Item Name
Valve,regulting
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Rtx Corporation Div Pratt & Whitney
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6110-01-278-4765POSSIBLE MATCH
PANEL,POWER DISTRIBUTION
Possible match (shared part number)
8145-01-408-7293102938POSSIBLE MATCH
SHIPPING AND STORAGE CONTAINER,M
Possible match (shared part number)Prc Composites, Llc Dba Globe Plastics
NSN 4820-01-189-7146 is a Valve,regulting, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-189-7146?
NSN 4820-01-189-7146 has 2 manufacturer part numbers on file: 102938 (Rtx Corporation Div Pratt & Whitney), 102938-1 (Rtx Corporation Div Pratt & Whitney).
What NSN replaces 4820-01-189-7146?
2 possible matches (shared part number, not a government interchangeability claim): 6110-01-278-4765, 8145-01-408-7293. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-189-7146 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.