The Seat,valve, cataloged under National Stock Number 4820-01-058-1984, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-058-1984 |
| Primary Part Number | 845-7284929-ITEM NO-11 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | CANCELLED |
| Reference Number Differentiating Characteristics | ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL |
| Criticality Code Justification | ZZZY |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 845-7284929-ITEM NO-11 | Naval Sea Systems Command (USA) |
| 845-4687594 ITEM 20 | Naval Ship Systems Command (USA) |
| 845-7284929-ITEM NO-11Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-801X1, PIECE 22 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2642-747-01 ITEM 20Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4558779 ITEM 10Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2643-820-88-ITEM NO-11Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-801X1, PIECE 22Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-747 ITEM 26Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2641-747 ITEM 26 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2643-820-88-ITEM NO-11 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-4558779 ITEM 10 | Naval Sea Systems Command (USA) |
| 2642-747-01 ITEM 20 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-4687594 ITEM 20Q3 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4687594 ITEM 20 | Naval Sea Systems Command (USA) |
NSN 4820-01-058-1984 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-058-1984 has 15 cross-referenced part numbers: 845-7284929-ITEM NO-11 (Naval Sea Systems Command), 845-4687594 ITEM 20 (Naval Ship Systems Command), 845-7284929-ITEM NO-11Q3 (Naval Inventory Control Point Mechanicsburg), 2640-801X1, PIECE 22 (Electric Boat Corporation Div General Dynamics Electric Boat), 2642-747-01 ITEM 20Q3 (Naval Inventory Control Point Mechanicsburg) and 10 more.
There are 2 known substitutes for 4820-01-058-1984: 4820-00-411-2695, 4820-01-061-7138. Verify interchangeability with system specifications before substitution.
Key specifications for 845-7284929-ITEM NO-11: Reference Number Differentiating Characteristics: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-058-1984 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.