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Technical Data Sheet
PartsTable / COMPONENT / J-429 PC. NO. 8
J-429 PC. NO. 8 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The J-429 PC. NO. 8 is a the manufacturer industrial component.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-415-2577, 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
J-429 PC. NO. 8
NSN: 4820-01-415-2577
FSC: 4820
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
Part NumberJ-429 PC. NO. 8
NSN4820-01-415-2577
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: J-429 PC. NO. 8 · 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
•
MATERIAL: NICKEL ALLOY SEAT
•
STYLE DESIGNATOR: PLAIN FLANGED
•
SEATING SURFACE SHAPE: FLAT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY SEAT
STYLE DESIGNATORPLAIN FLANGED
END ITEM IDENTIFICATIONNIMITZ CLASS CVN
SPECIAL FEATURESTOP SEAT
SEATING SURFACE SHAPEFLAT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
6230-4Interchangeable
interchangeable cross-reference
interchangeable
137618239Interchangeable
interchangeable cross-reference
interchangeable
2615-226Interchangeable
interchangeable cross-reference
interchangeable
SR226SR832-75AInterchangeable
interchangeable cross-reference
interchangeable
J429Interchangeable
interchangeable cross-reference
interchangeable
3178196-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J-429 PC. NO. 8?
J-429 PC. NO. 8 is a J-429 PC. NO. 8.
What parts can replace J-429 PC. NO. 8?
There are 10 known substitutes for J-429 PC. NO. 8: 6230-4, 137618239, 2615-226 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J-429 PC. NO. 8?
J-429 PC. NO. 8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-415-2577. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026