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1644161 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

1644161: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include inside_diameter: 1.000 INCHES NOMINAL IN, operating_pressure: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS, end_item_identification: 3990-01-443-8024, ENGINEERING MISSION MODULE (EMM), measuring_method_and_length: 20.000 INCHES NOMINAL OVERALL IN, part_name_assigned_by_controlling_agency: HOSE 1 7/16 ORS - 1 1/16 ORB X 20 RMRM 1000. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-538-2033, 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
1644161
NSN: 4720-01-538-2033
FSC: 4720 — Hose and Flexible Tubing
CAGE: 5X050 — CRYSTEEL MANUFACTURING, INC DBA CRYSTEEL MANUFACTURING INC (USA)
SPECIFICATIONS
inside_diameter1.000 INCHES NOMINAL IN
operating_pressure1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
end_item_identification3990-01-443-8024, ENGINEERING MISSION MODULE (EMM)
measuring_method_and_length20.000 INCHES NOMINAL OVERALL IN
part_name_assigned_by_controlling_agencyHOSE 1 7/16 ORS - 1 1/16 ORB X 20 RMRM 1000
NSN4720-01-538-2033
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 1644161 · 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: 20.000 INCHES NOMINAL OVERALL IN
•
OPERATING PRESSURE: 1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
•
INSIDE DIAMETER: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MEASURING METHOD AND LENGTH20.000 INCHES NOMINAL OVERALL IN
OPERATING PRESSURE1000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
INSIDE DIAMETER1.000 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYHOSE 1 7/16 ORS - 1 1/16 ORB X 20 RMRM 1000
END ITEM IDENTIFICATION3990-01-443-8024, ENGINEERING MISSION MODULE (EMM)
OTHER ITEMS IN FSC 4720 — Hose and Flexible Tubing
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4720-00-000-0080 4720-00-000-0081 4720-00-000-0084 4720-00-000-0724 4720-00-001-0014 4720-00-001-0015 4720-00-001-0023 4720-00-001-0025
SUBSTITUTES & CROSS-REFERENCES 1
405908Reference document
Same NSN cross-reference
Reference document — Secondary 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 1644161?
1644161 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 1644161?
There is 1 known substitute for 1644161: 405908. Substitute compatibility should be verified for your specific system.
What is the NSN for 1644161?
1644161 is cataloged in the U.S. Government catalog under NSN 4720-01-538-2033. 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.