PartsTable
Technical Data Sheet
1821S ✓ 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,GATE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY DISK, stem_type: NONRISING, valve_size: 0.375 INCHES IN, bonnet_type: INSIDE SCREW, connection_type: SOCKET, WELD, PIPE, features_provided: BONNET PACKING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-483-0675, 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
1821S
NSN: 4820-00-483-0675
FSC: 4820
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialNICKEL ALLOY DISK
stem_typeNONRISING
valve_size0.375 INCHES IN
bonnet_typeINSIDE SCREW
connection_typeSOCKET, WELD, PIPE
features_providedBONNET PACKING
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
operating_pressure_and_type400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
furnished_items_and_quantity1 HANDLE
inlet_relationship_with_outletIDENTICAL
nominal_pipe_size_accommodated0.375 INCHES IN
NSN4820-00-483-0675
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 1821S · 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
FEATURES PROVIDED: BONNET PACKING
MATERIAL: COPPER ALLOY BODY
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
STEM TYPE: NONRISING
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
FURNISHED ITEMS AND QUANTITY: 1 HANDLE
OPERATING PRESSURE AND TYPE: 400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDBONNET PACKING
MATERIALCOPPER ALLOY BODY
INLET RELATIONSHIP WITH OUTLETIDENTICAL
STEM TYPENONRISING
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD SINGLE MATERIAL RESPONSE BODY
FURNISHED ITEMS AND QUANTITY1 HANDLE
OPERATING PRESSURE AND TYPE400.0 POUNDS PER SQUARE INCH (PSI) WATER AND OTHER LIQUIDS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
MATERIALNICKEL ALLOY DISK
CONNECTION TYPESOCKET, WELD, PIPE
MATERIALNICKEL ALLOY STEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
2102-54-552AND5Interchangeable
interchangeable cross-reference
interchangeable
C-35650-M .50INInterchangeable
interchangeable cross-reference
interchangeable
810-1385714Interchangeable
interchangeable cross-reference
interchangeable
810-1385714-5Interchangeable
interchangeable cross-reference
interchangeable
803-1385714-5Interchangeable
interchangeable cross-reference
interchangeable
803-1385714-32 NON-MAGInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1821S?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1821S?
1821S is a VALVE,GATE.
What parts can replace 1821S?
There are 26 known substitutes for 1821S: 2102-54-552AND5, C-35650-M .50IN, 810-1385714 and 23 more. Substitute compatibility should be verified for your specific system.
Is 1821S still available?
1821S is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1821S