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20522-1 OLD — HOSE ASSEMBLY SET,METALLIC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

20522-1 OLD: HOSE ASSEMBLY SET,METALLIC.

The HOSE ASSEMBLY SET,METALLIC is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, overall_length: 1.436 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN, end_item_identification: VALVE RED 1.50IPS 6000PSI 5T300PSI FPT CRES, largest_outside_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-026-8204, 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
20522-1 OLD
NSN: 4820-01-026-8204
FSC: 4820 — Valves, Nonpowered
CAGE: 4SVA4 — DRESSER, INC. DBA PRESSURE REGULATION GROUP DIV DRESSER PRESSURE REGULATION GROUP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
overall_length1.436 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN
end_item_identificationVALVE RED 1.50IPS 6000PSI 5T300PSI FPT CRES
largest_outside_diameter0.312 INCHES NOMINAL IN
NSN4820-01-026-8204
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 20522-1 OLD · 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
•
LARGEST OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
LARGEST OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
OVERALL LENGTH1.436 INCHES MINIMUM AND 1.446 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONVALVE RED 1.50IPS 6000PSI 5T300PSI FPT CRES
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 2
N789 PIECE 21Reference document
Same NSN cross-reference
Reference document — Secondary reference
20522-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20522-1 OLD?
20522-1 OLD is a HOSE ASSEMBLY SET,METALLIC.
What parts can replace 20522-1 OLD?
There are 2 known substitutes for 20522-1 OLD: N789 PIECE 21, 20522-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 20522-1 OLD?
20522-1 OLD is cataloged in the U.S. Government catalog under NSN 4820-01-026-8204. 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.