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70307-63302 — TEE,FLANGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

70307-63302: TEE,FLANGE.

The TEE,FLANGE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, leg_length: 2.250 INCHES NOMINAL THIRD END IN, flange_shape: RECTANGULAR WITH HOLES ALL ENDS, nominal_width: 1.750 INCHES ALL ENDS IN, nominal_length: 1.750 INCHES ALL ENDS IN, connection_type: FLANGE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-259-1386, 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
70307-63302
NSN: 4730-01-259-1386
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061 OVERALL
leg_length2.250 INCHES NOMINAL THIRD END IN
flange_shapeRECTANGULAR WITH HOLES ALL ENDS
nominal_width1.750 INCHES ALL ENDS IN
nominal_length1.750 INCHES ALL ENDS IN
connection_typeFLANGE ALL ENDS
nominal_thickness0.222 INCHES ALL ENDS IN
surface_treatmentANODIZE OVERALL
bolt_hole_quantity4 ALL ENDS
flange_face_designPLAIN ALL ENDS
bolt_hole_nominal_diameter0.444 INCHES ALL ENDS IN
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-01-259-1386
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 70307-63302 · 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
•
FLANGE SHAPE: RECTANGULAR WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL LENGTH: 1.750 INCHES ALL ENDS IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
BOLT HOLE NOMINAL DIAMETER: 0.444 INCHES ALL ENDS IN
•
LEG LENGTH: 2.250 INCHES NOMINAL THIRD END IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPERECTANGULAR WITH HOLES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL LENGTH1.750 INCHES ALL ENDS IN
CONNECTION TYPEFLANGE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
BOLT HOLE NOMINAL DIAMETER0.444 INCHES ALL ENDS IN
LEG LENGTH2.250 INCHES NOMINAL THIRD END IN
LEG LENGTH2.310 INCHES NOMINAL SECOND END IN
LEG LENGTH2.310 INCHES NOMINAL FIRST END 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 70307-63302?
70307-63302 is a TEE,FLANGE.
What is the NSN for 70307-63302?
70307-63302 is cataloged in the U.S. Government catalog under NSN 4730-01-259-1386. 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.