PartsTable
Technical Data Sheet
257B-14S ✓ 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 POST,BINDING,ELECTRICAL is a the manufacturer industrial component. Key specifications include body_style: STRAIGHT THRU Y-PATTERN GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED, flow_control_device: DISK, PLUG TYPE, first_end_connection_type: UNTHREADED EXTERNAL TUBE, first_end_style_designator: PLAIN, second_end_relationship_with_first_end: IDENTICAL, first_end_outside_diameter_tube_accommodated: 0.875 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-372-8101, 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
257B-14S
NSN: 4820-01-372-8101
FSC: 4820
CAGE: 58553 — SUPERIOR VALVE CO (USA)
SPECIFICATIONS
body_styleSTRAIGHT THRU Y-PATTERN GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED
flow_control_deviceDISK, PLUG TYPE
end_connection_quantity2
first_end_connection_typeUNTHREADED EXTERNAL TUBE
first_end_style_designatorPLAIN
second_end_relationship_with_first_endIDENTICAL
first_end_outside_diameter_tube_accommodated0.875 INCHES NOMINAL IN
NSN4820-01-372-8101
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 257B-14S · 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
BODY STYLE: STRAIGHT THRU Y-PATTERN GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED
END CONNECTION QUANTITY: 2
FLOW CONTROL DEVICE: DISK, PLUG TYPE
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.875 INCHES NOMINAL IN
FIRST END CONNECTION TYPE: UNTHREADED EXTERNAL TUBE
FIRST END STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
BODY STYLESTRAIGHT THRU Y-PATTERN GIVE "ADQL" ONLY WHEN BOTH ENDS FLANGED
END CONNECTION QUANTITY2
FLOW CONTROL DEVICEDISK, PLUG TYPE
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED0.875 INCHES NOMINAL IN
FIRST END CONNECTION TYPEUNTHREADED EXTERNAL TUBE
FIRST END STYLE DESIGNATORPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
257BInterchangeable
interchangeable cross-reference
interchangeable
91128PC236Interchangeable
interchangeable cross-reference
interchangeable
116713PC236Interchangeable
interchangeable cross-reference
interchangeable
118679Interchangeable
interchangeable cross-reference
interchangeable
118 79Interchangeable
interchangeable cross-reference
interchangeable
227MS025P001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 257B-14S?
257B-14S is a POST,BINDING,ELECTRICAL.
What parts can replace 257B-14S?
There are 10 known substitutes for 257B-14S: 257B, 91128PC236, 116713PC236 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 257B-14S?
257B-14S is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-372-8101. This indicates validated use in U.S. government and defense supply chains.
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