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4921K1 — COCK,DRAIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4921K1: COCK,DRAIN.

The COCK,DRAIN is a the manufacturer industrial component. Key specifications include connection_type: THREADED EXTERNAL PIPE FIRST END, special_features: HEIGHT 1.5625 INCHES; REMOVABLE HANDLE-INTERNAL SEAL IN, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, minimum_operating_temp: -65.0 FAHRENHEIT DEGF, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-663-0678, 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
4921K1
NSN: 4820-01-663-0678
FSC: 4820 — Valves, Nonpowered
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
special_featuresHEIGHT 1.5625 INCHES; REMOVABLE HANDLE-INTERNAL SEAL IN
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
minimum_operating_temp-65.0 FAHRENHEIT DEGF
valve_operation_methodMANUAL
thread_series_designatorNPT FIRST END
furnished_items_and_quantity1 HANDLE
nominal_pipe_size_accommodated0.125 INCHES FIRST END IN
part_name_assigned_by_controlling_agencyDRAIN-HANDLE BRASS STOP COCK
NSN4820-01-663-0678
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4921K1 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 HANDLE
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.125 INCHES FIRST END IN
•
MINIMUM OPERATING TEMP: -65.0 FAHRENHEIT DEGF
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 HANDLE
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES FIRST END IN
MINIMUM OPERATING TEMP-65.0 FAHRENHEIT DEGF
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
SPECIAL FEATURESHEIGHT 1.5625 INCHES; REMOVABLE HANDLE-INTERNAL SEAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYDRAIN-HANDLE BRASS STOP COCK
THREAD SERIES DESIGNATORNPT FIRST END
VALVE OPERATION METHODMANUAL
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4921K1?
4921K1 is a COCK,DRAIN.
What is the NSN for 4921K1?
4921K1 is cataloged in the U.S. Government catalog under NSN 4820-01-663-0678. This indicates validated use in U.S. government and defense supply chains.
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