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Technical Data Sheet
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A346-0309 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

A346-0309: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include end_item_identification: TRUCK,TRACTOR (2320-01-452-5579), part_name_assigned_by_controlling_agency: VALVE,AIR PP-7 TRAILER AIR SUPPLY ASSY.. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-503-8197, 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
A346-0309
NSN: 4820-01-503-8197
FSC: 4820 — Valves, Nonpowered
CAGE: 03533 — CRANE CARRIER COMPANY, LLC (USA)
SPECIFICATIONS
end_item_identificationTRUCK,TRACTOR (2320-01-452-5579)
part_name_assigned_by_controlling_agencyVALVE,AIR PP-7 TRAILER AIR SUPPLY ASSY.
NSN4820-01-503-8197
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: A346-0309 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYVALVE,AIR PP-7 TRAILER AIR SUPPLY ASSY.
END ITEM IDENTIFICATIONTRUCK,TRACTOR (2320-01-452-5579)
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
A349-309Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 A346-0309?
A346-0309 is a VALVE,SAFETY RELIEF.
What parts can replace A346-0309?
There is 1 known substitute for A346-0309: A349-309. Substitute compatibility should be verified for your specific system.
What is the NSN for A346-0309?
A346-0309 is cataloged in the U.S. Government catalog under NSN 4820-01-503-8197. This indicates validated use in U.S. government and defense supply chains.
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