The Valve,stop-Check, cataloged under National Stock Number 4820-00-138-3854, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Corporation Div Flowserve Us Inc. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-138-3854 |
| Primary Part Number | 8S-194-5STP |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Corporation Div Flowserve Us Inc |
| Status | CANCELLED |
| Raised Face Nominal Diameter | 4.125 INCHES ALL ENDS IN |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Flange Shape | ROUND WITH HOLES ALL ENDS |
| Nominal Outside Diameter | 7.000 INCHES ALL ENDS IN |
| Test Data Document | 81349-MIL-S-901 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Nominal Thickness | 0.875 INCHES ALL ENDS IN |
| Material | COBALT ALLOY SEAT |
| Face to Face Distance | 8.500 INCHES IN |
| Nondefinitive Spec/std Data | D COMPOSITION |
| Material | COBALT ALLOY FLOW CONTROL DEVICE |
| Material | CHROMIUM ALLOY STEM |
| Material Document and Classification | ASTM A216 GRADE WCB ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Raised Face Nominal Height | 0.062 INCHES ALL ENDS IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bonnet Type | OUTSIDE SCREW-YOKE |
| Valve Operation Method | MANUAL |
| Valve Size | 2.500 INCHES IN |
| Flow Control Device | DISK |
| Bonnet Attachment Method | BOLTED |
| Material | STEEL UNS J03002 BODY |
| Bolt Circle Nominal Diameter | 5.500 INCHES ALL ENDS IN |
| Flange Face Design | RAISED STRAIGHT ALL ENDS |
| Bolt Hole Quantity | 4 ALL ENDS |
| Features Provided | BONNET PACKING |
| Bolt Hole Nominal Diameter | 0.750 INCHES ALL ENDS IN |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Maximum Operating Temp | 500.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8S-194-5STP | Flowserve Corporation Div Flowserve Us Inc (USA) |
| F090084C02TS/73324C-B/882037371 | Velan Valve Corp. (USA) |
| 152F-3 | William E Williams Valve Corp (USA) |
| 152F-3IN DWG 77 | William E Williams Valve Corp (USA) |
| 152F-3/7795N0REV/CID882059148 | William E Williams Valve Corp (USA) |
| MIL-DTL-22052 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 8S-194-5STP | Anchor/darling Valve Co (USA) |
| M22052-CDD015/025NS | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MILV22052 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 8S-194-5REVA | Flowserve Corporation Div Flowserve Us Inc (USA) |
| S-122-0250 | Pima Valve, Llc (USA) |
| S122-0250/S122-0250REV0882039520 | Pima Valve, Llc (USA) |
| 32719REVCCID882039284 | Crane Co Div Valve Div (USA) |
| 73324-1 | Velan Valve Corp. (USA) |
| 1221 | Pima Valve, Llc (USA) |
NSN 4820-00-138-3854 is a Valve,stop-Check, manufactured by Flowserve Corporation Div Flowserve Us Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-138-3854 has 15 cross-referenced part numbers: 8S-194-5STP (Flowserve Corporation Div Flowserve Us Inc), F090084C02TS/73324C-B/882037371 (Velan Valve Corp.), 152F-3 (William E Williams Valve Corp), 152F-3IN DWG 77 (William E Williams Valve Corp), 152F-3/7795N0REV/CID882059148 (William E Williams Valve Corp) and 10 more.
There is 1 known substitute for 4820-00-138-3854: 3040-01-341-2467. Verify interchangeability with system specifications before substitution.
Key specifications for 8S-194-5STP: Raised Face Nominal Diameter: 4.125 INCHES ALL ENDS IN; Media for Which Designed: STEAM SINGLE RESPONSE; Flange Shape: ROUND WITH HOLES ALL ENDS; Nominal Outside Diameter: 7.000 INCHES ALL ENDS IN. 27 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-138-3854 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.