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10108817 — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

10108817: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_angle: 37.0 DEGREES ALL ENDS, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARED (TUBE) ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-157-8435, 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
10108817
NSN: 4730-01-157-8435
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle37.0 DEGREES ALL ENDS
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED (TUBE) ALL ENDS
special_featuresWEAPONSYSTEMESSENTIAL
surface_treatmentALUMINUM OVERALL
nominal_thread_size0.438 INCHES SECOND END IN
nominal_overall_length1.406 INCHES IN
end_item_identificationF/A-18 HORNET AICRAFT
thread_series_designatorUNF SECOND END
NSN4730-01-157-8435
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10108817 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83488,CL 3,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.406 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.172 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83488,CL 3,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.406 INCHES IN
CRITICALITY CODE JUSTIFICATIONFEAT
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES SECOND END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.172 INCHES FIRST END IN
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
NOMINAL THREAD SIZE0.562 INCHES 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 2
7M637Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
7M637DA-6DReference 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 10108817?
10108817 is a REDUCER,TUBE.
What parts can replace 10108817?
There are 2 known substitutes for 10108817: 7M637, 7M637DA-6D. Substitute compatibility should be verified for your specific system.
What is the NSN for 10108817?
10108817 is cataloged in the U.S. Government catalog under NSN 4730-01-157-8435. This indicates validated use in U.S. government and defense supply chains.
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