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255770 PIECE 17 — BALL,VALVE,PORTED

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

255770 PIECE 17: BALL,VALVE,PORTED.

The BALL,VALVE,PORTED is a the manufacturer industrial component. Key specifications include material: TITANIUM, port_diameter: 5.375 INCHES NOMINAL IN, special_features: 9.875 IN. OD IN, port_configuration: STRAIGHT.

This part is cataloged in the U.S. Government catalog under NSN 4820-01-207-9871, 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
255770 PIECE 17
NSN: 4820-01-207-9871
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialTITANIUM
port_diameter5.375 INCHES NOMINAL IN
port_quantity2
special_features9.875 IN. OD IN
port_configurationSTRAIGHT
stem_accommodation_quantity1
NSN4820-01-207-9871
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 255770 PIECE 17 · 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
•
PORT DIAMETER: 5.375 INCHES NOMINAL IN
•
PORT CONFIGURATION: STRAIGHT
•
STEM ACCOMMODATION QUANTITY: 1
•
PORT QUANTITY: 2
•
MATERIAL: TITANIUM
TECHNICAL CHARACTERISTICS
PORT DIAMETER5.375 INCHES NOMINAL IN
PORT CONFIGURATIONSTRAIGHT
STEM ACCOMMODATION QUANTITY1
PORT QUANTITY2
SPECIAL FEATURES9.875 IN. OD IN
MATERIALTITANIUM
SUBSTITUTES & CROSS-REFERENCES 1
255770Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 255770 PIECE 17?
255770 PIECE 17 is a BALL,VALVE,PORTED.
What parts can replace 255770 PIECE 17?
There is 1 known substitute for 255770 PIECE 17: 255770. Substitute compatibility should be verified for your specific system.
What is the NSN for 255770 PIECE 17?
255770 PIECE 17 is cataloged in the U.S. Government catalog under NSN 4820-01-207-9871. 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.