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1644165 — HOSE ASSEMBLY,METALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

1644165: HOSE ASSEMBLY,METALLIC.

The HOSE ASSEMBLY,METALLIC is a the manufacturer industrial component. Key specifications include inside_diameter: 0.750 INCHES NOMINAL IN, operating_pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS, supplementary_features: FLAT FACE FEMALE FITTINGS EACH END W/1 3/16" THREADS, end_item_identification: NSN: 3990-01-443-8024, measuring_method_and_length: 245.000 INCHES NOMINAL OVERALL IN, part_name_assigned_by_controlling_agency: HOSE 1 3/16 ORS X 245 SF/SF 4000. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-538-2072, 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
1644165
NSN: 4720-01-538-2072
FSC: 4720 — Hose and Flexible Tubing
CAGE: 5X050 — CRYSTEEL MANUFACTURING, INC DBA CRYSTEEL MANUFACTURING INC (USA)
SPECIFICATIONS
inside_diameter0.750 INCHES NOMINAL IN
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
supplementary_featuresFLAT FACE FEMALE FITTINGS EACH END W/1 3/16" THREADS
end_item_identificationNSN: 3990-01-443-8024
measuring_method_and_length245.000 INCHES NOMINAL OVERALL IN
part_name_assigned_by_controlling_agencyHOSE 1 3/16 ORS X 245 SF/SF 4000
NSN4720-01-538-2072
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1644165 · 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: 245.000 INCHES NOMINAL OVERALL IN
•
SUPPLEMENTARY FEATURES: FLAT FACE FEMALE FITTINGS EACH END W/1 3/16" THREADS
•
OPERATING PRESSURE: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
INSIDE DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH245.000 INCHES NOMINAL OVERALL IN
SUPPLEMENTARY FEATURESFLAT FACE FEMALE FITTINGS EACH END W/1 3/16" THREADS
OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
INSIDE DIAMETER0.750 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYHOSE 1 3/16 ORS X 245 SF/SF 4000
END ITEM IDENTIFICATIONNSN: 3990-01-443-8024
SUBSTITUTES & CROSS-REFERENCES 1
405912Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1644165?
1644165 is a HOSE ASSEMBLY,METALLIC.
What parts can replace 1644165?
There is 1 known substitute for 1644165: 405912. Substitute compatibility should be verified for your specific system.
What is the NSN for 1644165?
1644165 is cataloged in the U.S. Government catalog under NSN 4720-01-538-2072. 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.