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2.5-R1011-43BB-1J — VALVE,BUTTERFLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2.5-R1011-43BB-1J: VALVE,BUTTERFLY.

The VALVE,BUTTERFLY is a the manufacturer industrial component. Key specifications include material: IRON CAST BODY, valve_size: 2.500 INCHES IN, style_designator: STRAIGHT THRU, mounting_facility: WAFER, operating_pressure: 285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-431-2501, 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
2.5-R1011-43BB-1J
NSN: 4820-01-431-2501
FSC: 4820 — Valves, Nonpowered
CAGE: 1NB39 — DOVER RESOURCES, INC. DIV NORRISEAL (USA)
SPECIFICATIONS
materialIRON CAST BODY
valve_size2.500 INCHES IN
style_designatorSTRAIGHT THRU
mounting_facilityWAFER
operating_pressure285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
valve_operation_methodMANUAL
end_item_identificationENGINE, AIRCRAFT, F101-GE-100(B-1)
NSN4820-01-431-2501
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2.5-R1011-43BB-1J · 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
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
VALVE SIZE: 2.500 INCHES IN
•
MOUNTING FACILITY: WAFER
•
MATERIAL: ALUMINUM ALLOY FLOW CONTROL DEVICE
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE285.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE SIZE2.500 INCHES IN
MOUNTING FACILITYWAFER
END ITEM IDENTIFICATIONENGINE, AIRCRAFT, F101-GE-100(B-1)
MATERIALALUMINUM ALLOY FLOW CONTROL DEVICE
MATERIALRUBBER PACKING
MATERIALIRON CAST BODY
MATERIALRUBBER SEAT
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2.5-R1011-43BB-1J?
2.5-R1011-43BB-1J is a VALVE,BUTTERFLY.
What is the NSN for 2.5-R1011-43BB-1J?
2.5-R1011-43BB-1J is cataloged in the U.S. Government catalog under NSN 4820-01-431-2501. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.