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ALPV45VS1 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

ALPV45VS1: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: QUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS OF SURFACE LEVEL 1 ITEMS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-408-8031, 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
ALPV45VS1
NSN: 4820-01-408-8031
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS OF SURFACE LEVEL 1 ITEMS
NSN4820-01-408-8031
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: ALPV45VS1 · 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
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS OF SURFACE LEVEL 1 ITEMS
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROLLED IAW NAVSUP CONTROL INSTRUCTIONS OF SURFACE LEVEL 1 ITEMS
SUBSTITUTES & CROSS-REFERENCES 3
ALPV45VReference document
Same NSN cross-reference
Reference document — Design control — primary reference
B1943Reference document
Same NSN cross-reference
Reference document — Secondary reference
B1943S1Same 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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is ALPV45VS1?
ALPV45VS1 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace ALPV45VS1?
There are 3 known substitutes for ALPV45VS1: ALPV45V, B1943, B1943S1. Substitute compatibility should be verified for your specific system.
What is the NSN for ALPV45VS1?
ALPV45VS1 is cataloged in the U.S. Government catalog under NSN 4820-01-408-8031. 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.