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551889 — HOSE ASSEMBLY,NONMETALLIC

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

551889: HOSE ASSEMBLY,NONMETALLIC.

The HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, body_type: SOLID, head_type: SOLID, drive_end_style: RECESSED HEXAGON, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4720-01-652-4150, 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
551889
NSN: 4720-01-652-4150
FSC: 4720 — Hose and Flexible Tubing
CAGE: 03670 — TYCO FIRE PRODUCTS LP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_typeSOLID
head_typeSOLID
drive_end_styleRECESSED HEXAGON
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size0.250 INCHES EXTERNAL IN
special_test_featuresCRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES
thread_series_designatorNPTF EXTERNAL
nominal_pipe_size_for_which_designed0.250 INCHES IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY SPECIAL TEST FEATURES
NSN4720-01-652-4150
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 551889 · 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
SUBSTITUTES & CROSS-REFERENCES 2
00983910Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
551889 ITEM 5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 551889?
551889 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 551889?
There are 2 known substitutes for 551889: 00983910, 551889 ITEM 5. Substitute compatibility should be verified for your specific system.
What is the NSN for 551889?
551889 is cataloged in the U.S. Government catalog under NSN 4720-01-652-4150. 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.