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255584PC17 — SEAT,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

255584PC17: SEAT,VALVE.

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, overall_height: 0.281 INCHES NOMINAL IN, special_features: GROOVES EQUALL SPACED 0.250 IN. RADIUS,0.031 IN.

DEEP IN, style_designator: PLAIN, body_inside_diameter: 0.813 INCHES NOMINAL IN, body_outside_diameter: 1.438 INCHES NOMINAL IN. This part is cataloged in the U.S. Government catalog under NSN 4820-00-283-3282, 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
255584PC17
NSN: 4820-00-283-3282
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
overall_height0.281 INCHES NOMINAL IN
special_featuresGROOVES EQUALL SPACED 0.250 IN. RADIUS,0.031 IN. DEEP IN
style_designatorPLAIN
body_inside_diameter0.813 INCHES NOMINAL IN
body_outside_diameter1.438 INCHES NOMINAL IN
seating_surface_shapeFLAT
seal_accommodation_typeGROOVED
NSN4820-00-283-3282
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 255584PC17 · 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: 1.438 INCHES NOMINAL IN
•
SEAL ACCOMMODATION TYPE: GROOVED
•
STYLE DESIGNATOR: PLAIN
•
BODY INSIDE DIAMETER: 0.813 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.281 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.438 INCHES NOMINAL IN
SEAL ACCOMMODATION TYPEGROOVED
STYLE DESIGNATORPLAIN
BODY INSIDE DIAMETER0.813 INCHES NOMINAL IN
SPECIAL FEATURESGROOVES EQUALL SPACED 0.250 IN. RADIUS,0.031 IN. DEEP IN
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
SEATING SURFACE SHAPEFLAT
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 255584PC17?
255584PC17 is a SEAT,VALVE.
What is the NSN for 255584PC17?
255584PC17 is cataloged in the U.S. Government catalog under NSN 4820-00-283-3282. 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.