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3307855 — INSERT,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3307855: INSERT,TUBE FITTING.

The INSERT,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, special_features: OXYGEN CLEANED, style_designator: PLAIN, casehardening_indicator: NOT CASEHARDENED, end_item_identification: EAGLE F-15 ACFT, flange_outside_diameter: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-428-9864, 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
3307855
NSN: 4730-01-428-9864
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 99251 — MISSION SYSTEMS DAVENPORT INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY
special_featuresOXYGEN CLEANED
style_designatorPLAIN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationEAGLE F-15 ACFT
flange_outside_diameter0.250 INCHES NOMINAL IN
sleeve_outside_diameter0.188 INCHES NOMINAL IN
criticality_code_justificationFEAT
tube_inside_diameter_for_which_designed0.125 INCHES NOMINAL IN
NSN4730-01-428-9864
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3307855 · 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
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: PLAIN
•
SLEEVE OUTSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
TUBE INSIDE DIAMETER FOR WHICH DESIGNED: 0.125 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORPLAIN
SLEEVE OUTSIDE DIAMETER0.188 INCHES NOMINAL IN
TUBE INSIDE DIAMETER FOR WHICH DESIGNED0.125 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
SPECIAL FEATURESOXYGEN CLEANED
END ITEM IDENTIFICATIONEAGLE F-15 ACFT
MATERIALCOPPER ALLOY
FLANGE OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
4T1Z(.125)B-C3Reference document
Same NSN cross-reference
Reference document — Secondary reference
3307855-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 3307855?
3307855 is a INSERT,TUBE FITTING.
What parts can replace 3307855?
There are 2 known substitutes for 3307855: 4T1Z(.125)B-C3, 3307855-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 3307855?
3307855 is cataloged in the U.S. Government catalog under NSN 4730-01-428-9864. 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.