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615550 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

615550: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, seat_angle_in_deg: 30.000 NOMINAL, taper_major_diameter: 0.847 INCHES NOMINAL IN, taper_minor_diameter: 0.545 INCHES NOMINAL IN, seating_surface_shape: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-191-9062, 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
615550
NSN: 4820-00-191-9062
FSC: 4820 — Valves, Nonpowered
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
seat_angle_in_deg30.000 NOMINAL
taper_major_diameter0.847 INCHES NOMINAL IN
taper_minor_diameter0.545 INCHES NOMINAL IN
seating_surface_shapeANGULAR
NSN4820-00-191-9062
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 615550 · 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 MINOR DIAMETER: 0.545 INCHES NOMINAL IN
•
TAPER MAJOR DIAMETER: 0.847 INCHES NOMINAL IN
•
MATERIAL: PLASTIC OVERALL
•
SEAT ANGLE IN DEG: 30.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
TAPER MINOR DIAMETER0.545 INCHES NOMINAL IN
TAPER MAJOR DIAMETER0.847 INCHES NOMINAL IN
MATERIALPLASTIC OVERALL
SEAT ANGLE IN DEG30.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
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 615550?
615550 is a SEAT,VALVE.
What is the NSN for 615550?
615550 is cataloged in the U.S. Government catalog under NSN 4820-00-191-9062. 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.