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PartsTable / COMPONENT / 77-101 .25IN
77-101 .25IN ✓ 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 77-101 .25IN 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 4820-01-443-7491, 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
77-101 .25IN
NSN: 4820-01-443-7491
FSC: 4820
CAGE: 57661 — CONBRACO INDUSTRIES INC (USA)
SPECIFICATIONS
Part Number77-101 .25IN
NSN4820-01-443-7491
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 77-101 .25IN · 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
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: COPPER ALLOY FLOW CONTROL DEVICE
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
BONNET ATTACHMENT METHOD: THREADED
•
STYLE DESIGNATOR: STRAIGHT THRU
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
MATERIALCOPPER ALLOY BODY
BONNET ATTACHMENT METHODTHREADED
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
BONNET TYPEINSIDE SCREW
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
89201Interchangeable
interchangeable cross-reference
interchangeable
7710-101Interchangeable
interchangeable cross-reference
interchangeable
2145550-1Interchangeable
interchangeable cross-reference
interchangeable
4129AS0151-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77-101 .25IN?
77-101 .25IN is a 77-101 .25IN.
What parts can replace 77-101 .25IN?
There are 4 known substitutes for 77-101 .25IN: 89201, 7710-101, 2145550-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77-101 .25IN?
77-101 .25IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-443-7491. 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