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NAS520-12 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

NAS520-12: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include connection_type: PLAIN BOTH ENDS, style_designator: SLEEVE SECTION, operating_pressure: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, cross-sectional_shape_style: ROUND, specification/standard_data: 80205-NAS520 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 4720-00-289-0738, 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
NAS520-12
NSN: 4720-00-289-0738
FSC: 4720 — Hose and Flexible Tubing
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
connection_typePLAIN BOTH ENDS
style_designatorSLEEVE SECTION
operating_pressure20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
cross-sectional_shape_styleROUND
specification/standard_data80205-NAS520 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN4720-00-289-0738
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: NAS520-12 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION TYPE: PLAIN BOTH ENDS
•
STYLE DESIGNATOR: SLEEVE SECTION
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OPERATING PRESSURE: 20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
SPECIFICATION/STANDARD DATA: 80205-NAS520 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
CONNECTION TYPEPLAIN BOTH ENDS
STYLE DESIGNATORSLEEVE SECTION
CROSS-SECTIONAL SHAPE STYLEROUND
OPERATING PRESSURE20.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
SPECIFICATION/STANDARD DATA80205-NAS520 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SUBSTITUTES & CROSS-REFERENCES 1
NAS522Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is NAS520-12?
NAS520-12 is a HOSE,AIR DUCT.
What parts can replace NAS520-12?
There is 1 known substitute for NAS520-12: NAS522. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS520-12?
NAS520-12 is cataloged in the U.S. Government catalog under NSN 4720-00-289-0738. 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.