The Valve,check, cataloged under National Stock Number 4820-00-546-0724, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hesse Corp. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-546-0724 |
| Primary Part Number | HC2631-1A36 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Hesse Corp |
| Status | CANCELLED |
| Style Designator | STRAIGHT THRU |
| Nominal Thread Size | 1.000 INCHES FIRST END IN |
| Flow Control Device | BALL |
| Material Document and Classification | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material | PLASTIC FLOW CONTROL DEVICE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Connection Style | PLAIN, OPTIONAL END (PIPE) FIRST END |
| Thread Series Designator | NPT FIRST END |
| Thread Series Designator | NPT SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY SEAT |
| Nominal Pipe Size Accommodated | 1.000 INCHES FIRST END IN |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Material | COPPER ALLOY 922 BODY |
| Material | COPPER ALLOY STEM |
| Valve Operation Method | AUTOMATIC |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 1.000 INCHES SECOND END IN |
| Connection Style | PLAIN (PIPE) SECOND END |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 20-11800 | Tyco Fire Products Lp (USA) |
| 43-01731 | Kaitlin Corp (USA) |
| V118 | Tyco Fire Products Lp (USA) |
| HC2631-1A36 PRIMARY | Hesse Corp (USA) |
| 20-00118 PRIMARY | Tyco Fire Products Lp (USA) |
NSN 4820-00-546-0724 is a Valve,check, manufactured by Hesse Corp, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-546-0724 has 5 cross-referenced part numbers: 20-11800 (Tyco Fire Products Lp), 43-01731 (Kaitlin Corp), V118 (Tyco Fire Products Lp), HC2631-1A36 (Hesse Corp), 20-00118 (Tyco Fire Products Lp).
There are 4 known substitutes for 4820-00-546-0724: 3030-00-204-0174, 3030-00-529-1207, 6230-01-016-3411 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for HC2631-1A36: Style Designator: STRAIGHT THRU; Nominal Thread Size: 1.000 INCHES FIRST END IN; Flow Control Device: BALL; Material Document and Classification: QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY. 22 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-546-0724 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.