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Technical Data Sheet
PartsTable / COMPONENT / 101156-2 1/2IN BB PT 1
101156-2 1/2IN BB PT 1 ✓ 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 101156-2 1/2IN BB PT 1 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-198-0764, 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
101156-2 1/2IN BB PT 1
NSN: 4820-01-198-0764
FSC: 4820
CAGE: 76364 — MILWAUKEE VALVE CO, INC DIV MILWAUKEE VALVE COMPANY, LLC (USA)
SPECIFICATIONS
Part Number101156-2 1/2IN BB PT 1
NSN4820-01-198-0764
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 101156-2 1/2IN BB PT 1 · 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
•
MATERIAL: COPPER ALLOY BODY
•
VALVE OPERATION METHOD: AUTOMATIC
•
FACE TO FACE DISTANCE: 8.312 INCHES IN
•
STYLE DESIGNATOR: STRAIGHT THRU FLANGED ENDS
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
VALVE SIZE: 2.500 INCHES IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
OPERATING PRESSURE: 100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY BODY
VALVE OPERATION METHODAUTOMATIC
FACE TO FACE DISTANCE8.312 INCHES IN
STYLE DESIGNATORSTRAIGHT THRU FLANGED ENDS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
VALVE SIZE2.500 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BOLT HOLE QUANTITY6 ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
2640-265-7Interchangeable
interchangeable cross-reference
interchangeable
203973PC7Interchangeable
interchangeable cross-reference
interchangeable
2640-265PC7Interchangeable
interchangeable cross-reference
interchangeable
101156Interchangeable
interchangeable cross-reference
interchangeable
21-195Interchangeable
interchangeable cross-reference
interchangeable
332773-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 101156-2 1/2IN BB PT 1?
101156-2 1/2IN BB PT 1 is a 101156-2 1/2IN BB PT 1.
What parts can replace 101156-2 1/2IN BB PT 1?
There are 20 known substitutes for 101156-2 1/2IN BB PT 1: 2640-265-7, 203973PC7, 2640-265PC7 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 101156-2 1/2IN BB PT 1?
101156-2 1/2IN BB PT 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-198-0764. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026