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10108854 — TEE,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

10108854: TEE,TUBE TO BOSS.

The TEE,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, leg_length: 1.578 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES FIRST END, nominal_thread_size: 0.438 INCHES FIRST END IN, thread_series_designator: UNF FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-170-7860, 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
10108854
NSN: 4730-01-170-7860
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
leg_length1.578 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES FIRST END
nominal_thread_size0.438 INCHES FIRST END IN
thread_series_designatorUNF FIRST END
NSN4730-01-170-7860
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10108854 · 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
•
LEG LENGTH: 1.578 INCHES NOMINAL FIRST END IN
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
•
MATERIAL: STEEL COMP 304 OVERALL
•
THREAD SERIES DESIGNATOR: UNF FIRST END
TECHNICAL CHARACTERISTICS
LEG LENGTH1.578 INCHES NOMINAL FIRST END IN
LEG LENGTH0.891 INCHES NOMINAL SECOND END IN
LEG LENGTH0.953 INCHES NOMINAL THIRD END IN
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
MATERIALSTEEL COMP 304 OVERALL
THREAD SERIES DESIGNATORUNF FIRST END
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
21200-4-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
337-541-9225Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10108854?
10108854 is a TEE,TUBE TO BOSS.
What parts can replace 10108854?
There are 2 known substitutes for 10108854: 21200-4-17, 337-541-9225. Substitute compatibility should be verified for your specific system.
What is the NSN for 10108854?
10108854 is cataloged in the U.S. Government catalog under NSN 4730-01-170-7860. 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.