PartsTable
Technical Data Sheet
845-4558779 ITEM 10 ✓ Verified by PartsTable
· GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The SEAT,VALVE is a the manufacturer industrial component. Key specifications include material: PLASTIC ACETAL OVERALL, overall_height: 0.562 INCHES NOMINAL IN, style_designator: PLAIN, seat_angle_in_deg: 45.000 NOMINAL, body_inside_diameter: 3.062 INCHES NOMINAL IN, body_outside_diameter: 4.484 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-058-1984, 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
845-4558779 ITEM 10
NSN: 4820-01-058-1984
FSC: 4820
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC ACETAL OVERALL
overall_height0.562 INCHES NOMINAL IN
style_designatorPLAIN
seat_angle_in_deg45.000 NOMINAL
body_inside_diameter3.062 INCHES NOMINAL IN
body_outside_diameter4.484 INCHES NOMINAL IN
seating_surface_shapeANGULAR
criticality_code_justificationZZZY
material_document_and_classificationDE568 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN4820-01-058-1984
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 845-4558779 ITEM 10 · 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
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: ITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL
CRITICALITY CODE JUSTIFICATION: ZZZY
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSITEMS THAT SUPPORT A LEVEL I OR SUBSAFE CRITICAL SYSTEM/COMPONENT THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS AND REQUIRES OBJECTIVE QUALITY EVIDENCE (OQE) TRACEABLE TO PERMANENT MARKING ON THE MATERIAL
CRITICALITY CODE JUSTIFICATIONZZZY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
845-8616948-PIECE NO-12Interchangeable
interchangeable cross-reference
interchangeable
2644-747-01-PIECE NO-12Q3Interchangeable
interchangeable cross-reference
interchangeable
2640-801X1 PIECE 22Interchangeable
interchangeable cross-reference
interchangeable
2643-820-88 ITEM 11Interchangeable
interchangeable cross-reference
interchangeable
2640-801X01 PIECE 22Interchangeable
interchangeable cross-reference
interchangeable
56-97-0727Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-4558779 ITEM 10?
845-4558779 ITEM 10 is a SEAT,VALVE.
What parts can replace 845-4558779 ITEM 10?
There are 16 known substitutes for 845-4558779 ITEM 10: 845-8616948-PIECE NO-12, 2644-747-01-PIECE NO-12Q3, 2640-801X1 PIECE 22 and 13 more. Substitute compatibility should be verified for your specific system.
Is 845-4558779 ITEM 10 still available?
845-4558779 ITEM 10 is currently cancelled.
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