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11-GN-0055A — VALVE,CHECK

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

11-GN-0055A: VALVE,CHECK.

The VALVE,CHECK is a the manufacturer industrial component. Key specifications include special_features: 4" SWING CHECK VALVE, mounting_position: HORIZONTAL, disk_loading_method: WEIGHT, valve_operation_method: AUTOMATIC, end_item_identification: W/S SEAWOLF CLASS SSN, criticality_code_justification: AGAV. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-520-3588, 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
11-GN-0055A
NSN: 4820-01-520-3588
NIINs: 015203588, 015496685
FSC: 4820 — Valves, Nonpowered
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
special_features4" SWING CHECK VALVE
mounting_positionHORIZONTAL
disk_loading_methodWEIGHT
valve_operation_methodAUTOMATIC
end_item_identificationW/S SEAWOLF CLASS SSN
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencySWING CHECK VALVE
reference_number_differentiating_characteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMSFOR LEVEL 1 ITEMS
NSN4820-01-520-3588
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 11-GN-0055A · 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
•
MOUNTING POSITION: HORIZONTAL
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
DISK LOADING METHOD: WEIGHT
•
VALVE OPERATION METHOD: AUTOMATIC
TECHNICAL CHARACTERISTICS
MOUNTING POSITIONHORIZONTAL
CRITICALITY CODE JUSTIFICATIONAGAV
DISK LOADING METHODWEIGHT
SPECIAL FEATURES4" SWING CHECK VALVE
PART NAME ASSIGNED BY CONTROLLING AGENCYSWING CHECK VALVE
END ITEM IDENTIFICATIONW/S SEAWOLF CLASS SSN
VALVE OPERATION METHODAUTOMATIC
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 11-GN-0055A?
11-GN-0055A is a VALVE,CHECK.
What is the NSN for 11-GN-0055A?
11-GN-0055A is cataloged in the U.S. Government catalog under NSN 4820-01-520-3588. This indicates validated use in U.S. government and defense supply chains.
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