NSN 4820-01-141-1276 · NIIN 011411276 · Part number 2640-009ASSY7 14959
Naval Inventory Control Point Mechanicsburg · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE 03950
Government record, cited
NSN 4820-01-141-1276 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-141-1276. Manufacturer of record part number: 2640-009ASSY7 14959.
Manufacturer of record: Naval Inventory Control Point Mechanicsburg
Identification
NSN: 4820-01-141-1276
NIIN: 011411276
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 2640-009ASSY7 14959
Manufacturer: Naval Inventory Control Point Mechanicsburg
General Description
The Locking Device,valv, cataloged under National Stock Number 4820-01-141-1276, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
Locking Device,valv
FSC / FSG
4820 — Valves, Nonpowered (FSG 48)
Manufacturers
Naval Inventory Control Point Mechanicsburg (CAGE 03950)
Technical Specifications
Parameter
Value
NSN
4820-01-141-1276
Primary Part Number
2640-009ASSY7 14959
Item Name
Locking Device,valv
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Inventory Control Point Mechanicsburg
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-415-7928845-1889758ASSY1POSSIBLE MATCH
LOCKING DEVICE
Possible match (shared part number)Naval Ship Systems Command
4820-01-416-4050218025858POSSIBLE MATCH
LOCKING DEVICE,VALV
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-416-4055845-1889758ASSY42POSSIBLE MATCH
LOCKING DEVICE,VALV
Possible match (shared part number)Naval Ship Systems Command
4820-01-418-0975845-1889758ASSY5POSSIBLE MATCH
LOCKING DEVICE,VALV
Possible match (shared part number)Naval Ship Systems Command
4820-01-418-40302640-009ASSY6POSSIBLE MATCH
LOCKING DEVICE,VALV
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-504-74232640-009 ASSY 33POSSIBLE MATCH
LOCK,STEM,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
NSN 4820-01-141-1276 is a Locking Device,valv, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-141-1276?
NSN 4820-01-141-1276 has 1 manufacturer part number on file: 2640-009ASSY7 14959 (Naval Inventory Control Point Mechanicsburg).
What NSN replaces 4820-01-141-1276?
6 possible matches (shared part number, not a government interchangeability claim): 4820-01-415-7928, 4820-01-416-4050, 4820-01-416-4055. Verify interchangeability with system specifications before substitution.
Is NSN 4820-01-141-1276 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.