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D3791-2.-B — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

D3791-2.-B: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-207-4767, 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
D3791-2.-B
NSN: 4820-01-207-4767
FSC: 4820 — Valves, Nonpowered
CAGE: 12004 — NAVAL SEA SYSTEMS COMMAND LOGISTICS SUPPORT ENGINEERING ACTIVITY (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN4820-01-207-4767
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D3791-2.-B · 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 CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
SUBSTITUTES & CROSS-REFERENCES 3
NS-3983 ASSY FL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NS-3983 ASSY FReference document
Same NSN cross-reference
Reference document — Secondary reference
D3791-2.-BL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is D3791-2.-B?
D3791-2.-B is a VALVE,CHECK.
What parts can replace D3791-2.-B?
There are 3 known substitutes for D3791-2.-B: NS-3983 ASSY FL1, NS-3983 ASSY F, D3791-2.-BL1. Substitute compatibility should be verified for your specific system.
What is the NSN for D3791-2.-B?
D3791-2.-B is cataloged in the U.S. Government catalog under NSN 4820-01-207-4767. This indicates validated use in U.S. government and defense supply chains.
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