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2S5123-2 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

2S5123-2: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A SINGLE THREADED PORTION A, thread_length: 0.342 INCHES NOMINAL SINGLE THREADED PORTION IN, flange_diameter: 3.135 INCHES NOMINAL IN, style_designator: THREADED FLANGED, nominal_thread_size: 2.875 INCHES SINGLE THREADED PORTION IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-074-1249, 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
2S5123-2
NSN: 4820-00-074-1249
FSC: 4820 — Valves, Nonpowered
CAGE: 52406 — RUGGLES-KLINGEMANN MFG CO DBA THE RUGGLES-KLINGEMANN COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A SINGLE THREADED PORTION A
thread_length0.342 INCHES NOMINAL SINGLE THREADED PORTION IN
flange_diameter3.135 INCHES NOMINAL IN
style_designatorTHREADED FLANGED
nominal_thread_size2.875 INCHES SINGLE THREADED PORTION IN
under_flange_height1.195 INCHES NOMINAL IN
seating_surface_shapeFLAT
thread_quantity_per_inch16 SINGLE THREADED PORTION
thread_series_designatorUN SINGLE THREADED PORTION
body_stepped_inside_diameter1.985 INCHES NOMINAL FIRST STEP IN
flange_seat_to_disk_end_height0.443 INCHES NOMINAL IN
NSN4820-00-074-1249
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 2S5123-2 · 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
•
FLANGE SEAT TO DISK END HEIGHT: 0.443 INCHES NOMINAL IN
•
FLANGE DIAMETER: 3.135 INCHES NOMINAL IN
•
THREAD LENGTH: 0.342 INCHES NOMINAL SINGLE THREADED PORTION IN
•
BODY STEPPED INSIDE DIAMETER: 1.985 INCHES NOMINAL FIRST STEP IN
•
STYLE DESIGNATOR: THREADED FLANGED
•
NOMINAL THREAD SIZE: 2.875 INCHES SINGLE THREADED PORTION IN
•
UNDER FLANGE HEIGHT: 1.195 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE SEAT TO DISK END HEIGHT0.443 INCHES NOMINAL IN
FLANGE DIAMETER3.135 INCHES NOMINAL IN
THREAD LENGTH0.342 INCHES NOMINAL SINGLE THREADED PORTION IN
BODY STEPPED INSIDE DIAMETER1.985 INCHES NOMINAL FIRST STEP IN
BODY STEPPED INSIDE DIAMETER2.735 INCHES NOMINAL SECOND STEP IN
STYLE DESIGNATORTHREADED FLANGED
NOMINAL THREAD SIZE2.875 INCHES SINGLE THREADED PORTION IN
UNDER FLANGE HEIGHT1.195 INCHES NOMINAL IN
THREAD CLASS2A SINGLE THREADED PORTION A
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2S5123-2?
2S5123-2 is a SEAT,VALVE.
What is the NSN for 2S5123-2?
2S5123-2 is cataloged in the U.S. Government catalog under NSN 4820-00-074-1249. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.