The Stem,fluid Valve, cataloged under National Stock Number 4820-01-136-4751, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-136-4751 |
| Primary Part Number | 845-2050999 PIECE 9 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Material Document and Classification | QQ-B-679,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE |
| Valve Size for Which Designed | 0.125 INCHES AND 0.250 INCHES AND 0.375 INCHES AND 0.500 INCHES IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 845-2050999 PIECE 9 PRIMARY | Naval Ship Systems Command (USA) |
| 2640-613 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-2050999 | Naval Ship Systems Command (USA) |
| 2640-613 PIECE 9 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-136-4751 is a Stem,fluid Valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-136-4751 has 4 cross-referenced part numbers: 845-2050999 PIECE 9 (Naval Ship Systems Command), 2640-613 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2050999 (Naval Ship Systems Command), 2640-613 PIECE 9 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 6 known substitutes for 4820-01-136-4751: 5310-00-050-6646, 4820-01-155-5029, 4820-01-156-8349 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 845-2050999 PIECE 9: Overall Length: 4.250 INCHES NOMINAL IN; Material Document and Classification: QQ-B-679,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE; Valve Size for Which Designed: 0.125 INCHES AND 0.250 INCHES AND 0.375 INCHES AND 0.500 INCHES IN; Material: ALUMINUM ALLOY. 4 total characteristics are documented in the Federal Logistics Information System.