The Vent and Drain Assembly,valve, cataloged under National Stock Number 4820-01-120-0487, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-120-0487 |
| Primary Part Number | 2621-827-05ASSY88 |
| Item Name | Vent and Drain Assembly,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF VENT AND DRAIN FITTING BODY 1,GUN METAL; SAFETY DEVICE 1; VENT VALVE 1,NICKEL COPPER; LOCKWIRE NICKEL COPPER 0.040 IN.DIA IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 502-4685853ITEMF18 | Naval Ship Systems Command (USA) |
| 704-4685582F38 | Naval Ship Systems Command (USA) |
| 517-4695712F75 | Naval Ship Systems Command (USA) |
| 87655-1351 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 87655-1351F75 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 506-4676496F3 | Naval Ship Systems Command (USA) |
| 704-4685606F57 | Naval Ship Systems Command (USA) |
| 87656-1911 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2621-827-05 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 513-4683690ITEMF8 | Naval Ship Systems Command (USA) |
| 87656-1911F3 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2621-827-05ASSY88 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 506-4676496 | Naval Ship Systems Command (USA) |
| 262182705-0088 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 517-4695712 | Naval Ship Systems Command (USA) |
NSN 4820-01-120-0487 is a Vent and Drain Assembly,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-120-0487 has 15 cross-referenced part numbers: 502-4685853ITEMF18 (Naval Ship Systems Command), 704-4685582F38 (Naval Ship Systems Command), 517-4695712F75 (Naval Ship Systems Command), 87655-1351 (Electric Boat Corporation Div General Dynamics Electric Boat), 87655-1351F75 (Electric Boat Corporation Div General Dynamics Electric Boat) and 10 more.
There are 3 known substitutes for 4820-01-120-0487: 4720-01-091-7398, 4720-01-289-3538, 4720-01-346-4692. Verify interchangeability with system specifications before substitution.
Key specifications for 2621-827-05ASSY88: General Characteristics Item Description: CONSISTS OF VENT AND DRAIN FITTING BODY 1,GUN METAL; SAFETY DEVICE 1; VENT VALVE 1,NICKEL COPPER; LOCKWIRE NICKEL COPPER 0.040 IN.DIA IN. 1 total characteristics are documented in the Federal Logistics Information System.