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PartsTable / COMPONENT / 2577-056-122
2577-056-122 ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, seat_angle: 14.0 DEGREES NOMINAL, temp_rating: 1000.0 FAHRENHEIT NOMINAL DEGF, taper_length: 1.937 INCHES NOMINAL IN, overall_height: 2.562 INCHES NOMINAL IN, style_designator: SOLID WEDGE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-291-5317, 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
2577-056-122
NSN: 4820-01-291-5317
FSC: 4820
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
seat_angle14.0 DEGREES NOMINAL
temp_rating1000.0 FAHRENHEIT NOMINAL DEGF
taper_length1.937 INCHES NOMINAL IN
overall_height2.562 INCHES NOMINAL IN
style_designatorSOLID WEDGE
taper_minor_diameter0.719 INCHES NOMINAL IN
media_for_which_designedOIL OR WATER
NSN4820-01-291-5317
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2577-056-122 · 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
•
TAPER LENGTH: 1.937 INCHES NOMINAL IN
•
TEMP RATING: 1000.0 FAHRENHEIT NOMINAL DEGF
•
MEDIA FOR WHICH DESIGNED: OIL OR WATER
•
TAPER MINOR DIAMETER: 0.719 INCHES NOMINAL IN
•
SEAT ANGLE: 14.0 DEGREES NOMINAL
•
MATERIAL: STEEL CORROSION RESISTING
•
STYLE DESIGNATOR: SOLID WEDGE
TECHNICAL CHARACTERISTICS (FLIS)
TAPER LENGTH1.937 INCHES NOMINAL IN
TEMP RATING1000.0 FAHRENHEIT NOMINAL DEGF
MEDIA FOR WHICH DESIGNEDOIL OR WATER
TAPER MINOR DIAMETER0.719 INCHES NOMINAL IN
SEAT ANGLE14.0 DEGREES NOMINAL
MATERIALSTEEL CORROSION RESISTING
STYLE DESIGNATORSOLID WEDGE
OVERALL HEIGHT2.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
23379Interchangeable
interchangeable cross-reference
interchangeable
GGG-D-296Interchangeable
interchangeable cross-reference
interchangeable
382 1-1/8-7 UNCInterchangeable
interchangeable cross-reference
interchangeable
128657-H1Interchangeable
interchangeable cross-reference
interchangeable
E1181-54-1Interchangeable
interchangeable cross-reference
interchangeable
85192Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2577-056-122?
2577-056-122 is a DISK,VALVE.
What parts can replace 2577-056-122?
There are 14 known substitutes for 2577-056-122: 23379, GGG-D-296, 382 1-1/8-7 UNC and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2577-056-122?
2577-056-122 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-291-5317. 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