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Technical Data Sheet

2556 2 1/2IN — Technical Data Sheet

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— · 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 VALVE,GATE is a the manufacturer industrial component. Key specifications include color: WHITE, width: 4.000 INCHES NOMINAL IN, length: 4.000 INCHES NOMINAL IN, material: GAUZE, ABSORBENT, nut_style: HEXAGON, body_width: 1.812 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 4820-01-374-7989, 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
2556 2 1/2IN
NSN: 4820-01-374-7989
FSC: 4820
CAGE: 0A0N9 — YOUNG AND CUNNINGHAM AMERICA INC A JOINT VENTURE (USA)
SPECIFICATIONS
colorWHITE
width4.000 INCHES NOMINAL IN
length4.000 INCHES NOMINAL IN
materialGAUZE, ABSORBENT
nut_styleHEXAGON
body_width1.812 INCHES NOMINAL IN
body_height1.938 INCHES NOMINAL IN
body_length2.438 INCHES NOMINAL IN
blade_length7.750 INCHES NOMINAL IN
groove_width0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
thread_class2B
grommet_styleROUND
NSN4820-01-374-7989
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2556 2 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
7920-00-045-2556Interchangeable
interchangeable cross-reference
interchangeable
2556Interchangeable
interchangeable cross-reference
interchangeable
GGG-S-001333Interchangeable
interchangeable cross-reference
interchangeable
679281PC1Interchangeable
interchangeable cross-reference
interchangeable
K9045806REV4PT1Interchangeable
interchangeable cross-reference
interchangeable
4422Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2556 2 1/2IN?
2556 2 1/2IN is a VALVE,GATE.
What parts can replace 2556 2 1/2IN?
There are 17 known substitutes for 2556 2 1/2IN: 7920-00-045-2556, 2556, GGG-S-001333 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2556 2 1/2IN?
2556 2 1/2IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-374-7989. This indicates validated use in U.S. government and defense supply chains.
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