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Technical Data Sheet
PartsTable / COMPONENT / 281T .50 INCH
281T .50 INCH ✓ 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 281T .50 INCH is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-293-7687, 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
281T .50 INCH
NSN: 4820-00-293-7687
FSC: 4820
CAGE: 61465 — GARWOOD/FELLER INC GARWOOD WINCH DIV (USA)
SPECIFICATIONS
Part Number281T .50 INCH
NSN4820-00-293-7687
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 281T .50 INCH · 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
•
VALVE OPERATION METHOD: MANUALMANUAL
•
MATERIAL: COPPER ALLOY STEMCOPPER ALLOY 922 SEAT
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDSPLAIN,OPTIONAL END(PIPE) ALL ENDS
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MEDIA FOR WHICH DESIGNED: STEAM FIRST RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
TECHNICAL CHARACTERISTICS (FLIS)
VALVE OPERATION METHODMANUALMANUAL
MATERIALCOPPER ALLOY STEMCOPPER ALLOY 922 SEAT
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDSPLAIN,OPTIONAL END(PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY STEM
BONNET TYPEINSIDE SCREWINSIDE SCREW
MATERIALCOPPER ALLOY FLOW CONTROL DEVICECOPPER ALLOY 922 BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
19M4A-AAO-AOInterchangeable
interchangeable cross-reference
interchangeable
94155Interchangeable
interchangeable cross-reference
interchangeable
407 1-2Interchangeable
interchangeable cross-reference
interchangeable
400F913Interchangeable
interchangeable cross-reference
interchangeable
400F9143Interchangeable
interchangeable cross-reference
interchangeable
592-1/4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 281T .50 INCH?
281T .50 INCH is a 281T .50 INCH.
What parts can replace 281T .50 INCH?
There are 26 known substitutes for 281T .50 INCH: 19M4A-AAO-AO, 94155, 407 1-2 and 23 more. Substitute compatibility should be verified for your specific system.
Is 281T .50 INCH still available?
281T .50 INCH 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