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D1400-946 — TAILPIECE,UNION

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D1400-946: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-512-8915, 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
D1400-946
NSN: 4820-01-512-8915
NIINs: 015128915, 015138571, 015142651, 015176643
FSC: 4820 — Valves, Nonpowered
CAGE: 65079 — DANCO VALVE COMPANY (USA)
SPECIFICATIONS
materialCOPPER ALLOY
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
NSN4820-01-512-8915
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D1400-946 · 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 3
BEMBB01SAAReference document
Same NSN cross-reference
Reference document — Design control — primary reference
D1400-946 ASSY BEMBB01SAAReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-V-22549Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D1400-946?
D1400-946 is a TAILPIECE,UNION.
What parts can replace D1400-946?
There are 3 known substitutes for D1400-946: BEMBB01SAA, D1400-946 ASSY BEMBB01SAA, MIL-V-22549. Substitute compatibility should be verified for your specific system.
What is the NSN for D1400-946?
D1400-946 is cataloged in the U.S. Government catalog under NSN 4820-01-512-8915. 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.