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308821 — TEE,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

308821: TEE,BOSS.

The TEE,BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, leg_length: 0.844 INCHES NOMINAL ALL ENDS IN, thread_class: 2B ALL ENDS, connection_type: THREADED INTERNAL BOSS ALL ENDS, connection_style: GASKET SEAL (BOSS) ALL ENDS, special_features: CHECK VALVE 2 EA LOCATED IN EACH END OF THE RUN AND REDUCER LOCATED IN THE BRANCH. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-974-7109, 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
308821
NSN: 4730-00-974-7109
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79343 — ASRC FEDERAL FACILITIES LOGISTICS, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length0.844 INCHES NOMINAL ALL ENDS IN
thread_class2B ALL ENDS
connection_typeTHREADED INTERNAL BOSS ALL ENDS
connection_styleGASKET SEAL (BOSS) ALL ENDS
special_featuresCHECK VALVE 2 EA LOCATED IN EACH END OF THE RUN AND REDUCER LOCATED IN THE BRANCH
surface_treatmentPHOSPHATE OVERALL
nominal_thread_size0.562 INCHES FIRST END IN
thread_series_designatorUNF ALL ENDS
furnished_items_and_quantity1 REDUCER NUT
NSN4730-00-974-7109
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 308821 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 REDUCER NUT
•
CONNECTION STYLE: GASKET SEAL (BOSS) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL BOSS ALL ENDS
•
LEG LENGTH: 0.844 INCHES NOMINAL ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.562 INCHES FIRST END IN
•
SURFACE TREATMENT: PHOSPHATE OVERALL
•
THREAD CLASS: 2B ALL ENDS
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 REDUCER NUT
CONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
CONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
LEG LENGTH0.844 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
SPECIAL FEATURESCHECK VALVE 2 EA LOCATED IN EACH END OF THE RUN AND REDUCER LOCATED IN THE BRANCH
SURFACE TREATMENTPHOSPHATE OVERALL
THREAD CLASS2B ALL ENDS
MATERIALALUMINUM ALLOY OVERALL
THREAD SERIES DESIGNATORUNF ALL ENDS
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 308821?
308821 is a TEE,BOSS.
What is the NSN for 308821?
308821 is cataloged in the U.S. Government catalog under NSN 4730-00-974-7109. This indicates validated use in U.S. government and defense supply chains.
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