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21F-CB3 — VALVE,GLOBE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

21F-CB3: VALVE,GLOBE.

The VALVE,GLOBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 FLOW CONTROL DEVICE, valve_size: 2.500 INCHES IN, bonnet_type: INSIDE SCREW, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, special_features: STOP-CHECK TYPE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-270-4257, 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
21F-CB3
NSN: 4820-01-270-4257
NIINs: 012704257, 012996668
FSC: 4820 — Valves, Nonpowered
CAGE: 61661 — NEWMANS INC NEW JERSEY DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 410 FLOW CONTROL DEVICE
valve_size2.500 INCHES IN
bonnet_typeINSIDE SCREW
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
special_featuresSTOP-CHECK TYPE
style_designatorSTRAIGHT THRU FLANGED ENDS
mounting_facilityBRACKET(S)
nominal_thickness0.690 INCHES ALL ENDS IN
bolt_hole_quantity4 ALL ENDS
flange_face_designRAISED STRAIGHT ALL ENDS
operating_pressure285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4820-01-270-4257
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 21F-CB3 · 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
•
FLOW CONTROL DEVICE: DISK
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: RAISED STRAIGHT ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 6.000 INCHES ALL ENDS IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.750 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEDISK
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGNRAISED STRAIGHT ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER6.000 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
BOLT HOLE NOMINAL DIAMETER0.750 INCHES ALL ENDS IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE SIZE3.000 INCHES IN
BONNET TYPEOUTSIDE SCREW-YOKE
SUBSTITUTES & CROSS-REFERENCES 3
21F-CB2-SC-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
21F-CB3-SC-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PS-2103C2S0Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21F-CB3?
21F-CB3 is a VALVE,GLOBE.
What parts can replace 21F-CB3?
There are 3 known substitutes for 21F-CB3: 21F-CB2-SC-3, 21F-CB3-SC-3, PS-2103C2S0. Substitute compatibility should be verified for your specific system.
What is the NSN for 21F-CB3?
21F-CB3 is cataloged in the U.S. Government catalog under NSN 4820-01-270-4257. This indicates validated use in U.S. government and defense supply chains.
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