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9998-1504 — SLEEVE,COMPRESSION,TUBE-HOSE FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

9998-1504: SLEEVE,COMPRESSION,TUBE-HOSE FIT.

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: ALUMINUM ALLOY 6061, overall_length: 0.250 INCHES NOMINAL IN, style_designator: TAPERED, TUBE GRIPPING, surface_treatment: ANODIZE, casehardening_indicator: NOT CASEHARDENED, sleeve_outside_diameter: 0.562 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-976-3966, 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
9998-1504
NSN: 4730-00-976-3966
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 50027 — UNDERSEA SENSOR SYSTEMS INC DIV ULTRA SONOBUOY SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
overall_length0.250 INCHES NOMINAL IN
style_designatorTAPERED, TUBE GRIPPING
surface_treatmentANODIZE
casehardening_indicatorNOT CASEHARDENED
sleeve_outside_diameter0.562 INCHES NOMINAL IN
hose/tube_outside_diameter_for_which_designed0.312 INCHES NOMINAL IN
NSN4730-00-976-3966
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 9998-1504 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STYLE DESIGNATOR: TAPERED, TUBE GRIPPING
•
SLEEVE OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 6061
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORTAPERED, TUBE GRIPPING
OVERALL LENGTH0.250 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 6061
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.312 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
959384-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
4730PL0143806Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 9998-1504?
9998-1504 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 9998-1504?
There are 2 known substitutes for 9998-1504: 959384-1, 4730PL0143806. Substitute compatibility should be verified for your specific system.
What is the NSN for 9998-1504?
9998-1504 is cataloged in the U.S. Government catalog under NSN 4730-00-976-3966. 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.