The Valve,restrictor Check, cataloged under National Stock Number 4820-00-166-9183, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is B & B Tritech Inc.. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-166-9183 |
| Primary Part Number | SM9 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | B & B Tritech Inc. |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Surface Treatment | CHROMIUM |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Style Designator | STRAIGHT THRU |
| Supplementary Features | FLOW CONTROL DEVICE: DIAPHRAGM |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Surface Treatment | CHROMIUM |
| Valve Operation Method | AUTOMATIC |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Operating Pressure | 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER, FRESH SINGLE RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Supplementary Features | FLOW CONTROL DEVICE: DIAPHRAGM |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Aperture Diameter | 0.171 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-166-9183 is a Valve,restrictor Check, manufactured by B & B Tritech Inc., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-166-9183 has 2 cross-referenced part numbers: G (Eaton Corp Controls Div), SM9 (B & B Tritech Inc.).
There is 1 known substitute for 4820-00-166-9183: 5330-00-087-5070. Verify interchangeability with system specifications before substitution.
Key specifications for SM9: Material: RUBBER SYNTHETIC FLOW CONTROL DEVICE; Surface Treatment: CHROMIUM; Material: COPPER ALLOY BODY; Media for Which Designed: WATER, FRESH SINGLE RESPONSE. 25 total characteristics are documented in the Federal Logistics Information System.