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Technical Data Sheet
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MS21905J20 — TEE,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21905J20: TEE,TUBE.

The TEE,TUBE is a the manufacturer industrial component. Key specifications include end_item_identification: KC-330, part_name_assigned_by_controlling_agency: TEE,TUBE TO BOSS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-693-6837, 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
MS21905J20
NSN: 4730-01-693-6837
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
end_item_identificationKC-330
part_name_assigned_by_controlling_agencyTEE,TUBE TO BOSS
NSN4730-01-693-6837
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21905J20 · 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
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYTEE,TUBE TO BOSS
END ITEM IDENTIFICATIONKC-330
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 1
SAE-AS18280Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS21905J20?
MS21905J20 is a TEE,TUBE.
What parts can replace MS21905J20?
There is 1 known substitute for MS21905J20: SAE-AS18280. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21905J20?
MS21905J20 is cataloged in the U.S. Government catalog under NSN 4730-01-693-6837. This indicates validated use in U.S. government and defense supply chains.
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