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831954 — MICROCIRCUIT,DIGITAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

831954: MICROCIRCUIT,DIGITAL.

The MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include end_item_identification: PUMP ASSY, part_name_assigned_by_controlling_agency: COUPLING HALF MOTOR PUMP SIDE. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-157-4379, 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
831954
NSN: 4820-01-157-4379
NIINs: 011574379, 015532271
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identificationPUMP ASSY
part_name_assigned_by_controlling_agencyCOUPLING HALF MOTOR PUMP SIDE
NSN4820-01-157-4379
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 831954 · 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 5
H-8413Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6705255SH52Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
A-4364Reference document
Same NSN cross-reference
Reference document — Secondary reference
H-8413 PIECE 179Reference document
Same NSN cross-reference
Reference document — Secondary reference
900009Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 831954?
831954 is a MICROCIRCUIT,DIGITAL.
What parts can replace 831954?
There are 5 known substitutes for 831954: H-8413, 6705255SH52, A-4364 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 831954?
831954 is cataloged in the U.S. Government catalog under NSN 4820-01-157-4379. 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.