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4558769-021AL1 — RETAINER,DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4558769-021AL1: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a the manufacturer industrial component. Key specifications include end_item_identification: VALVE B COMBN 3.00IPS, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-220-2144, 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
4558769-021AL1
NSN: 4820-01-220-2144
NIINs: 012202144, 013521738
FSC: 4820 — Valves, Nonpowered
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
end_item_identificationVALVE B COMBN 3.00IPS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEMS
NSN4820-01-220-2144
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4558769-021AL1 · 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: MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
END ITEM IDENTIFICATIONNUTS-STEM RETAINING FOR DOUBLE NUT ARRANGEMENT
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
SUBSTITUTES & CROSS-REFERENCES 10
2642-807-02 ITEM 21AReference document
Same NSN cross-reference
Reference document — Secondary reference
2642-807-02-IT-21AReference document
Same NSN cross-reference
Reference document — Secondary reference
2642-807-02 ITEM 21AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
845-4558769 ITEM 21ALReference document
Same NSN cross-reference
Reference document — Secondary reference
2642-807-02-IT-21AL1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H547-001-264285701-86L1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4558769-021AL1?
4558769-021AL1 is a RETAINER,DISK,VALVE.
What parts can replace 4558769-021AL1?
There are 10 known substitutes for 4558769-021AL1: 2642-807-02 ITEM 21A, 2642-807-02-IT-21A, 2642-807-02 ITEM 21AL1 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4558769-021AL1?
4558769-021AL1 is cataloged in the U.S. Government catalog under NSN 4820-01-220-2144. This indicates validated use in U.S. government and defense supply chains.
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