The Valve,check, cataloged under National Stock Number 4820-01-008-1984, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-008-1984 |
| Primary Part Number | 2632A-4TT |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Circor Aerospace, Inc. Dba Circor Aerospace Inc |
| Status | CANCELLED |
| Maximum Operating Temp | 350.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material | ALUMINUM ALLOY 2024 BODY |
| Connection Style | FLARED (TUBE) ALL ENDS |
| Disk Loading Method | SPRING |
| Flow Control Device | POPPET |
| Thread Class | 3A ALL ENDS A |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Thread Series Designator | UNF ALL ENDS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Style Designator | STRAIGHT THRU |
| Nominal Thread Size | 0.438 INCHES ALL ENDS IN |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Surface Treatment | ANODIZE |
| Seat Angle | 37.0 DEGREES ALL ENDS |
| Material | RUBBER POLYMETHYLENE-PERFLUOROALKYLENE CLASS FKM SEAT |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 0ID-2677A4TT | Echelon Supply and Service, Inc. (USA) |
| 2632A-4TT PRIMARY | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 3C1440 | Crissair Inc Div Esco Technologies (USA) |
| 2664A4TT | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 2677A4TT | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 244A4TTEL | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
| 32051 | Williams International Co., L.l.c. (USA) |
| 27D1335 | Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA) |
NSN 4820-01-008-1984 is a Valve,check, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-008-1984 has 8 cross-referenced part numbers: 0ID-2677A4TT (Echelon Supply and Service, Inc.), 2632A-4TT (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 3C1440 (Crissair Inc Div Esco Technologies), 2664A4TT (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 2677A4TT (Circor Aerospace, Inc. Dba Circor Aerospace Inc) and 3 more.
There are 3 known substitutes for 4820-01-008-1984: 5940-00-552-2024, 3110-00-856-0781, 4820-01-326-0225. Verify interchangeability with system specifications before substitution.
Key specifications for 2632A-4TT: Maximum Operating Temp: 350.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Material: ALUMINUM ALLOY 2024 BODY; Connection Style: FLARED (TUBE) ALL ENDS. 19 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-008-1984 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.