NSN 4820-01-166-4681 · NIIN 011664681 · Part number 3801187
Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd · FSC 4820 — Valves, Nonpowered · FSG 48 — Valves · CAGE U1918
Government record, cited
NSN 4820-01-166-4681 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-166-4681. Manufacturer of record part number: 3801187.
Also searched as4820-01-166-4681 ·
4820011664681 ·
NIIN 011664681 ·
01-166-4681 ·
FSC 4820 Valves, Nonpowered · CAGE U1918 · 3801187
General Characteristics Item Description: IRON; 1.030 IN. O/A LG; 0.920 IN.MAX DIA HD; 0.599 IN. MIN,0.600 IN. MAX SHANK DIA IN
2 manufacturer part numbers on file
Manufacturer of record: Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd
Identification
NSN: 4820-01-166-4681
NIIN: 011664681
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
Primary part number: 3801187
Manufacturer: Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd
General Description
The Plunger Assembly, cataloged under National Stock Number 4820-01-166-4681, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4820-01-166-4681
Primary Part Number
3801187
Item Name
Plunger Assembly
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd
Status
ACTIVE
General Characteristics Item Description
IRON; 1.030 IN. O/A LG; 0.920 IN.MAX DIA HD; 0.599 IN. MIN,0.600 IN. MAX SHANK DIA IN
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097
4820-00-000-0097 · Item name not on file
4820-00-001-0010
VALVE,ROTARY,SELECTOR
4820-00-001-0020
4820-00-001-0020 · Item name not on file
4820-00-001-0021
4820-00-001-0021 · Item name not on file
4820-00-001-0032
4820-00-001-0032 · Item name not on file
4820-00-001-0037
VALVE,SAFETY RELIEF
4820-00-001-0042
4820-00-001-0042 · Item name not on file
4820-00-001-1230
4820-00-001-1230 · Item name not on file
Frequently Asked Questions
What is NSN 4820-01-166-4681?
NSN 4820-01-166-4681 is a Plunger Assembly, manufactured by Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-166-4681?
NSN 4820-01-166-4681 has 2 manufacturer part numbers on file: 3801187 (Mission Systems Wimborne Limited Div Cobham Mission Systems Wimborne Ltd), 3801187 (Eaton Limited).
What are the specifications of 3801187?
Key specifications for 3801187: General Characteristics Item Description: IRON; 1.030 IN. O/A LG; 0.920 IN.MAX DIA HD; 0.599 IN. MIN,0.600 IN. MAX SHANK DIA IN; End Item Identification: ACFT MODEL AV-8. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-166-4681 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.
What is the DEMIL code for NSN 4820-01-166-4681?
NSN 4820-01-166-4681 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.