PartsTable
Technical Data Sheet

23399ITEM3(1/4IN) — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

23399ITEM3(1/4IN): CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL, valve_size: 0.250 INCHES IN, valve_type: GATE, end_item_identification: CVN NUCLEAR REACTOR BOUNDRY AREA., part_name_assigned_by_controlling_agency: PACKING FLANGE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-535-2394, 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
23399ITEM3(1/4IN)
NSN: 4820-01-535-2394
FSC: 4820 — Valves, Nonpowered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL
valve_size0.250 INCHES IN
valve_typeGATE
end_item_identificationCVN NUCLEAR REACTOR BOUNDRY AREA.
part_name_assigned_by_controlling_agencyPACKING FLANGE
NSN4820-01-535-2394
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 23399ITEM3(1/4IN) · 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
•
VALVE SIZE: 0.250 INCHES IN
•
VALVE TYPE: GATE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
VALVE SIZE0.250 INCHES IN
VALVE TYPEGATE
PART NAME ASSIGNED BY CONTROLLING AGENCYPACKING FLANGE
END ITEM IDENTIFICATIONCVN NUCLEAR REACTOR BOUNDRY AREA.
MATERIALSTEEL
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 1
23399Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 23399ITEM3(1/4IN)?
23399ITEM3(1/4IN) is a CIRCUIT CARD ASSEMBLY.
What parts can replace 23399ITEM3(1/4IN)?
There is 1 known substitute for 23399ITEM3(1/4IN): 23399. Substitute compatibility should be verified for your specific system.
What is the NSN for 23399ITEM3(1/4IN)?
23399ITEM3(1/4IN) is cataloged in the U.S. Government catalog under NSN 4820-01-535-2394. 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.