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17-000-575 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

17-000-575: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, overall_height: 0.804 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN, style_designator: PLAIN, seat_angle_in_deg: 45.000 NOMINAL, body_inside_diameter: 4.125 INCHES NOMINAL IN, body_outside_diameter: 5.373 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-020-9969, 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
17-000-575
NSN: 4820-01-020-9969
FSC: 4820 — Valves, Nonpowered
CAGE: 13646 — WILO USA LLC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
overall_height0.804 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
style_designatorPLAIN
seat_angle_in_deg45.000 NOMINAL
body_inside_diameter4.125 INCHES NOMINAL IN
body_outside_diameter5.373 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
seating_surface_shapeANGULAR
NSN4820-01-020-9969
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 17-000-575 · 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
•
BODY OUTSIDE DIAMETER: 5.373 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 4.125 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
SEAT ANGLE IN DEG: 45.000 NOMINAL
•
SEATING SURFACE SHAPE: ANGULAR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.804 INCHES MINIMUM AND 0.820 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER5.373 INCHES MINIMUM AND 5.377 INCHES MAXIMUM IN
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER4.125 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
SUBSTITUTES & CROSS-REFERENCES 1
133-000-072Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 17-000-575?
17-000-575 is a SEAT,VALVE.
What parts can replace 17-000-575?
There is 1 known substitute for 17-000-575: 133-000-072. Substitute compatibility should be verified for your specific system.
What is the NSN for 17-000-575?
17-000-575 is cataloged in the U.S. Government catalog under NSN 4820-01-020-9969. 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.