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402-2003 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

402-2003: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nominal_thread_size: 0.500 INCHES IN, end_item_identification: SBC SUCTION BLAST GUN (BLASTING MACHINE), thread_quantity_per_inch: 13. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-066-1350, 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
402-2003
NSN: 4820-01-066-1350
NIINs: 010661350, 014954853
FSC: 4820 — Valves, Nonpowered
CAGE: 96124 — TRANSDIGM INC DIV AERO FLUID PRODUCTS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nominal_thread_size0.500 INCHES IN
end_item_identificationSBC SUCTION BLAST GUN (BLASTING MACHINE)
thread_quantity_per_inch13
NSN4820-01-066-1350
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 402-2003 · 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
SUBSTITUTES & CROSS-REFERENCES 1
A51E9101-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 402-2003?
402-2003 is a VALVE,SAFETY RELIEF.
What parts can replace 402-2003?
There is 1 known substitute for 402-2003: A51E9101-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 402-2003?
402-2003 is cataloged in the U.S. Government catalog under NSN 4820-01-066-1350. This indicates validated use in U.S. government and defense supply chains.
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