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B12143-1D4 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

B12143-1D4: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-671-4133, 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
B12143-1D4
NSN: 4820-01-671-4133
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN4820-01-671-4133
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: B12143-1D4 · 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 10
7550478-3423-5001-19-3D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7550478-1970-002-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
1970 002-10-2113 ITEM 03Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-1970 002 ITEM 03D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7550478-3423-5001-19-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
1970 002-24N2113 ITEM 03Same 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 B12143-1D4?
B12143-1D4 is a STEM,FLUID VALVE.
What parts can replace B12143-1D4?
There are 10 known substitutes for B12143-1D4: 7550478-3423-5001-19-3D4, 7550478-1970-002-3, 1970 002-10-2113 ITEM 03 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B12143-1D4?
B12143-1D4 is cataloged in the U.S. Government catalog under NSN 4820-01-671-4133. This indicates validated use in U.S. government and defense supply chains.
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