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Technical Data Sheet
PartsTable / COMPONENT / 901-1/2IN.
901-1/2IN. ✓ 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 901-1/2IN. 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 4820-01-077-1988, 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
901-1/2IN.
NSN: 4820-01-077-1988
FSC: 4820
CAGE: 14448 — HAMMOND VALVE CORP (USA)
SPECIFICATIONS
Part Number901-1/2IN.
NSN4820-01-077-1988
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 901-1/2IN. · 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
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SECOND RESPONSE DEGF
•
VALVE OPERATION METHOD: AUTOMATIC
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
FLOW CONTROL DEVICE: DISK
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
VALVE OPERATION METHODAUTOMATIC
MAXIMUM OPERATING TEMP353.0 FAHRENHEIT FIRST RESPONSE DEGF
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
FLOW CONTROL DEVICEDISK
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
MOUNTING POSITIONHORIZONTAL
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
901-12Interchangeable
interchangeable cross-reference
interchangeable
901-12CPInterchangeable
interchangeable cross-reference
interchangeable
0N039377Interchangeable
interchangeable cross-reference
interchangeable
WW-S-2739Interchangeable
interchangeable cross-reference
interchangeable
3-9-4BInterchangeable
interchangeable cross-reference
interchangeable
BM49794Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 901-1/2IN.?
901-1/2IN. is a 901-1/2IN..
What parts can replace 901-1/2IN.?
There are 10 known substitutes for 901-1/2IN.: 901-12, 901-12CP, 0N039377 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 901-1/2IN.?
901-1/2IN. is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-077-1988. 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