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550617-2 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

550617-2: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 30.0 DEGREES NOMINAL, overall_height: 3.032 INCHES NOMINAL IN, shank_diameter: 0.750 INCHES NOMINAL IN, outside_diameter: 0.875 INCHES NOMINAL IN, special_features: NYLON SEAT;DISK IS BOTTOM GUIDED. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-445-8628, 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
550617-2
NSN: 4820-00-445-8628
FSC: 4820 — Valves, Nonpowered
CAGE: 59364 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL DIV AEROSPACE - TEMPE (WEST WARNER ROAD) (USA)
SPECIFICATIONS
materialSTEEL
seat_angle30.0 DEGREES NOMINAL
overall_height3.032 INCHES NOMINAL IN
shank_diameter0.750 INCHES NOMINAL IN
outside_diameter0.875 INCHES NOMINAL IN
special_featuresNYLON SEAT;DISK IS BOTTOM GUIDED
style_designatorPOPPET
under_flange_height2.000 INCHES NOMINAL IN
flange_seat_to_disk_end_height1.032 INCHES NOMINAL IN
NSN4820-00-445-8628
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 550617-2 · 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
•
SHANK DIAMETER: 0.750 INCHES NOMINAL IN
•
FLANGE SEAT TO DISK END HEIGHT: 1.032 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: POPPET
•
SEAT ANGLE: 30.0 DEGREES NOMINAL
•
UNDER FLANGE HEIGHT: 2.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.750 INCHES NOMINAL IN
FLANGE SEAT TO DISK END HEIGHT1.032 INCHES NOMINAL IN
OVERALL HEIGHT3.032 INCHES NOMINAL IN
OUTSIDE DIAMETER0.875 INCHES NOMINAL IN
STYLE DESIGNATORPOPPET
SEAT ANGLE30.0 DEGREES NOMINAL
SPECIAL FEATURESNYLON SEAT;DISK IS BOTTOM GUIDED
UNDER FLANGE HEIGHT2.000 INCHES NOMINAL IN
MATERIALSTEEL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 550617-2?
550617-2 is a DISK,VALVE.
What is the NSN for 550617-2?
550617-2 is cataloged in the U.S. Government catalog under NSN 4820-00-445-8628. 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.