The Retainer,disk,valve, cataloged under National Stock Number 4820-01-092-0343, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-092-0343 |
| Primary Part Number | 26M77-100-PC21 |
| Item Name | Retainer,disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | CANCELLED |
| Material Document and Classification | QQ-N-281, CLASS A OR B, HF OR CD FED SPEC SINGLE MATERIAL RESPONSE |
| Inside Diameter | 0.875 INCHES MAXIMUM IN |
| Valve Model Number for Which Designed | 845-2445066 |
| Outside Diameter | 2.932 INCHES MAXIMUM IN |
| Valve Design Control Activity | 80064 |
| Valve Size for Which Designed | 3.000 INCHES IN |
| Material | NICKEL ALLOY |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 26M77-100-PC21 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-2445066 | Naval Ship Systems Command (USA) |
| 26M77-100 ITEM 21 PRIMARY | Naval Ship Systems Command (USA) |
| 2620-920X12 PIECE 5 3IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-2181282 | Naval Ship Systems Command (USA) |
| 26M77-100 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-920X12 PIECE 5 3IN | Hydro-Aire Aerospace Corp (USA) |
| 845-2445066 ITEM 21 | Naval Ship Systems Command (USA) |
| 845-2181282 PIECE 5 3IN PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-01-092-0343 is a Retainer,disk,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-092-0343 has 9 cross-referenced part numbers: 26M77-100-PC21 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2445066 (Naval Ship Systems Command), 26M77-100 ITEM 21 (Naval Ship Systems Command), 2620-920X12 PIECE 5 3IN (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2181282 (Naval Ship Systems Command) and 4 more.
There are 12 known substitutes for 4820-01-092-0343: 4820-00-900-2344, 4820-01-061-5106, 5360-01-068-7326 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 26M77-100-PC21: Material Document and Classification: QQ-N-281, CLASS A OR B, HF OR CD FED SPEC SINGLE MATERIAL RESPONSE; Inside Diameter: 0.875 INCHES MAXIMUM IN; Valve Model Number for Which Designed: 845-2445066; Outside Diameter: 2.932 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-092-0343 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.