The Valve,check, cataloged under National Stock Number 4820-00-273-7172, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is The Walworth Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-273-7172 |
| Primary Part Number | N10487 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Flow Control Device | DISK |
| Valve Operation Method | AUTOMATIC |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Criticality Code Justification | ZZZY |
| Style Designator | OFFSET |
| Connection Style | STREAMLINED WITH TWO BRAZING RING (PIPE) FIRST END |
| Offset Distance | 0.625 INCHES IN |
| Nominal Pipe Size Accommodated | 0.375 INCHES FIRST END IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Disk Loading Method | SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-273-7172 is a Valve,check, manufactured by The Walworth Company, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-273-7172 has 3 cross-referenced part numbers: N10487 (The Walworth Company), N10552 (The Walworth Company), 0XN330 (The Walworth Company).
There are 3 known substitutes for 4820-00-273-7172: 4820-00-289-0667, 5340-01-198-5726, 4820-01-200-6615. Verify interchangeability with system specifications before substitution.
Key specifications for N10487: Material: COPPER ALLOY BODY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330; Flow Control Device: DISK; Valve Operation Method: AUTOMATIC. 12 total characteristics are documented in the Federal Logistics Information System.