PartsTable
Technical Data Sheet
Download PDF

509-0398 — VALVE,BALL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

509-0398: VALVE,BALL.

The VALVE,BALL is a the manufacturer industrial component. Key specifications include end_item_identification: EXTERNAL ENGINE PARTS-MARINE GENERATOR SET,NO.40 MDCCF, part_name_assigned_by_controlling_agency: SEAL, REAR OIL. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-658-5478, 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
509-0398
NSN: 4820-00-658-5478
NIINs: 006585478, 016421397
FSC: 4820 — Valves, Nonpowered
CAGE: 53154 — PORTLAND VALVE LLC (USA)
SPECIFICATIONS
end_item_identificationEXTERNAL ENGINE PARTS-MARINE GENERATOR SET,NO.40 MDCCF
part_name_assigned_by_controlling_agencySEAL, REAR OIL
NSN4820-00-658-5478
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 509-0398 · 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
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
OPERATING PRESSURE: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
BONNET TYPE: INSIDE SCREW
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
BONNET ATTACHMENT METHOD: INTEGRAL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
OPERATING PRESSURE400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
BONNET TYPEINSIDE SCREW
THREAD DIRECTIONRIGHT-HAND ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
BONNET ATTACHMENT METHODINTEGRAL
MATERIALCOPPER ALLOY BODY
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
SUBSTITUTES & CROSS-REFERENCES 2
V671Reference document
Same NSN cross-reference
Reference document — Secondary reference
20-00671Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
Ready to buy 509-0398?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 509-0398?
509-0398 is a VALVE,BALL.
What parts can replace 509-0398?
There are 2 known substitutes for 509-0398: V671, 20-00671. Substitute compatibility should be verified for your specific system.
What is the NSN for 509-0398?
509-0398 is cataloged in the U.S. Government catalog under NSN 4820-00-658-5478. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 509-0398

✓ 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.