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11B256020 — SLEEVE,COMPRESSION,TUBE-HOSE FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

11B256020: SLEEVE,COMPRESSION,TUBE-HOSE FIT.

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: COPPER ALLOY, casehardening_indicator: NOT CASEHARDENED, end_item_identification: 4940-01-333-8470, hose/tube_outside_diameter_for_which_designed: 0.719 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-435-9946, 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
11B256020
NSN: 4730-01-435-9946
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 59678 — COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER DBA US ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND ARMAMENTS CENTER (USA)
SPECIFICATIONS
materialCOPPER ALLOY
casehardening_indicatorNOT CASEHARDENED
end_item_identification4940-01-333-8470
hose/tube_outside_diameter_for_which_designed0.719 INCHES NOMINAL IN
NSN4730-01-435-9946
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 11B256020 · 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
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COPPER ALLOY
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.719 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CASEHARDENING INDICATORNOT CASEHARDENED
END ITEM IDENTIFICATION4940-01-333-8470
MATERIALCOPPER ALLOY
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.719 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
1654-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 11B256020?
11B256020 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 11B256020?
There is 1 known substitute for 11B256020: 1654-8. Substitute compatibility should be verified for your specific system.
What is the NSN for 11B256020?
11B256020 is cataloged in the U.S. Government catalog under NSN 4730-01-435-9946. 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.