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Technical Data Sheet
PartsTable / COMPONENT / 88-21891
88-21891 ✓ 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,BALL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY FLOW CONTROL DEVICE, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN,OPTIONAL END(PIPE) ALL ENDS, special_features: LEVER HAS VINYL GRIP FOR HIGH TEMP, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-008-2922, 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
88-21891
NSN: 4820-01-008-2922
FSC: 4820
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
materialCOPPER ALLOY FLOW CONTROL DEVICE
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN,OPTIONAL END(PIPE) ALL ENDS
special_featuresLEVER HAS VINYL GRIP FOR HIGH TEMP
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
nominal_thread_size0.750 INCHES ALL ENDS IN
maximum_operating_temp450.0 FAHRENHEIT SINGLE RESPONSE DEGF
supplementary_featuresSEAT AND SEALS ARE MADE OF INERT POLYTETRAFLUOROETHYLENE TO ALLOW EASE OF OPENING AND CLOSING
valve_operation_methodMANUAL
end_item_identification3990-01-444-5196 CEMENT MIXER
NSN4820-01-008-2922
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 88-21891 · 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
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
MATERIAL: COPPER ALLOY STEM
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
SUPPLEMENTARY FEATURES: SEAT AND SEALS ARE MADE OF INERT POLYTETRAFLUOROETHYLENE TO ALLOW EASE OF OPENING AND CLOSING
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
MATERIALCOPPER ALLOY STEM
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SPECIAL FEATURESLEVER HAS VINYL GRIP FOR HIGH TEMP
SUPPLEMENTARY FEATURESSEAT AND SEALS ARE MADE OF INERT POLYTETRAFLUOROETHYLENE TO ALLOW EASE OF OPENING AND CLOSING
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE SEAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2IN VSHSM CA16221 PIECE 7Interchangeable
interchangeable cross-reference
interchangeable
7-0104-01Interchangeable
interchangeable cross-reference
interchangeable
7010401 PC 46Interchangeable
interchangeable cross-reference
interchangeable
803Interchangeable
interchangeable cross-reference
interchangeable
7010401 PC 47Interchangeable
interchangeable cross-reference
interchangeable
808-1 1/4 INInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 88-21891?
88-21891 is a VALVE,BALL.
What parts can replace 88-21891?
There are 20 known substitutes for 88-21891: 2IN VSHSM CA16221 PIECE 7, 7-0104-01, 7010401 PC 46 and 17 more. Substitute compatibility should be verified for your specific system.
Is 88-21891 still available?
88-21891 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