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1237H-50 — HOSE,AIR DUCT

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

1237H-50: HOSE,AIR DUCT.

The HOSE,AIR DUCT is a the manufacturer industrial component. Key specifications include wall_thickness: 0.250 INCHES NOMINAL IN, connection_type: SOFT BOTH ENDS, inside_diameter: 3.500 INCHES NOMINAL FIRST END IN, connection_style: ROUND BOTH ENDS, style_designator: HELICALLY WOUND CONTINOUS WIRE SUPPORTED, features_provided: SCUFF STRIP. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-112-1842, 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
1237H-50
NSN: 4720-01-112-1842
FSC: 4720 — Hose and Flexible Tubing
CAGE: 32784 — ARVICO CORPORATION (USA)
SPECIFICATIONS
wall_thickness0.250 INCHES NOMINAL IN
connection_typeSOFT BOTH ENDS
inside_diameter3.500 INCHES NOMINAL FIRST END IN
connection_styleROUND BOTH ENDS
style_designatorHELICALLY WOUND CONTINOUS WIRE SUPPORTED
features_providedSCUFF STRIP
end_overall_length10.000 INCHES NOMINAL BOTH ENDS IN
end_inside_diameter3.500 INCHES NOMINAL BOTH ENDS IN
cross-sectional_shape_styleROUND
measuring_method_and_length600.000 INCHES NOMINAL OVERALL IN
NSN4720-01-112-1842
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1237H-50 · 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
•
MEASURING METHOD AND LENGTH: 600.000 INCHES NOMINAL OVERALL IN
•
CONNECTION STYLE: ROUND BOTH ENDS
•
CONNECTION TYPE: SOFT BOTH ENDS
•
STYLE DESIGNATOR: HELICALLY WOUND CONTINOUS WIRE SUPPORTED
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
WALL THICKNESS: 0.250 INCHES NOMINAL IN
•
FEATURES PROVIDED: SCUFF STRIP
•
INSIDE DIAMETER: 3.500 INCHES NOMINAL FIRST END IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH600.000 INCHES NOMINAL OVERALL IN
CONNECTION STYLEROUND BOTH ENDS
CONNECTION TYPESOFT BOTH ENDS
STYLE DESIGNATORHELICALLY WOUND CONTINOUS WIRE SUPPORTED
CROSS-SECTIONAL SHAPE STYLEROUND
WALL THICKNESS0.250 INCHES NOMINAL IN
FEATURES PROVIDEDSCUFF STRIP
INSIDE DIAMETER3.500 INCHES NOMINAL FIRST END IN
END OVERALL LENGTH10.000 INCHES NOMINAL BOTH ENDS IN
END INSIDE DIAMETER3.500 INCHES NOMINAL BOTH ENDS IN
SUBSTITUTES & CROSS-REFERENCES 5
1388C103-50Reference document
Same NSN cross-reference
Reference document — Secondary reference
64A92C937Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
748034AA0600Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
64A92C937-2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1388C103Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1237H-50?
1237H-50 is a HOSE,AIR DUCT.
What parts can replace 1237H-50?
There are 5 known substitutes for 1237H-50: 1388C103-50, 64A92C937, 748034AA0600 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1237H-50?
1237H-50 is cataloged in the U.S. Government catalog under NSN 4720-01-112-1842. 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.