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Technical Data Sheet
PartsTable / COMPONENT / 8S-194-5STP
8S-194-5STP ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The VALVE,STOP-CHECK is a the manufacturer industrial component. Key specifications include material: STEEL UNS J03002 BODY, valve_size: 2.500 INCHES IN, bonnet_type: OUTSIDE SCREW-YOKE, flange_shape: ROUND WITH HOLES ALL ENDS, style_designator: STRAIGHT THRU FLANGED ENDS, features_provided: BONNET PACKING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-138-3854, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
8S-194-5STP
NSN: 4820-00-138-3854
FSC: 4820
CAGE: 85130 — FLOWSERVE CORPORATION DIV FLOWSERVE US INC (USA)
SPECIFICATIONS
materialSTEEL UNS J03002 BODY
valve_size2.500 INCHES IN
bonnet_typeOUTSIDE SCREW-YOKE
flange_shapeROUND WITH HOLES ALL ENDS
style_designatorSTRAIGHT THRU FLANGED ENDS
features_providedBONNET PACKING
nominal_thickness0.875 INCHES ALL ENDS IN
bolt_hole_quantity4 ALL ENDS
flange_face_designRAISED STRAIGHT ALL ENDS
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceDISK
face_to_face_distance8.500 INCHES IN
NSN4820-00-138-3854
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8S-194-5STP · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
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
TECHNICAL CHARACTERISTICS (FLIS)
RAISED FACE NOMINAL DIAMETER4.125 INCHES ALL ENDS IN
MEDIA FOR WHICH DESIGNEDSTEAM SINGLE RESPONSE
FLANGE SHAPEROUND WITH HOLES ALL ENDS
NOMINAL OUTSIDE DIAMETER7.000 INCHES ALL ENDS IN
TEST DATA DOCUMENT81349-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 THICKNESS0.875 INCHES ALL ENDS IN
MATERIALCOBALT ALLOY SEAT
FACE TO FACE DISTANCE8.500 INCHES IN
NONDEFINITIVE SPEC/STD DATAD COMPOSITION
MATERIALCOBALT ALLOY FLOW CONTROL DEVICE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
662-502-01Interchangeable
interchangeable cross-reference
interchangeable
33-241Interchangeable
interchangeable cross-reference
interchangeable
733-241Interchangeable
interchangeable cross-reference
interchangeable
F090084C02TS/73324C-B/882037371Interchangeable
Same NIIN cross-reference
interchangeable
152F-3Interchangeable
Same NIIN cross-reference
interchangeable
152F-3IN DWG 77Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8S-194-5STP?
8S-194-5STP is a VALVE,STOP-CHECK.
What parts can replace 8S-194-5STP?
There are 11 known substitutes for 8S-194-5STP: 662-502-01, 33-241, 733-241 and 8 more. Substitute compatibility should be verified for your specific system.
Is 8S-194-5STP still available?
8S-194-5STP is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026