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AC1049C12 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AC1049C12: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-10 OVERALL, seat_angle: 37.0 DEGREES SECOND END, thread_class: 3A SECOND END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE SECOND END BULKHEAD, connection_style: FLARED (TUBE) SECOND END, style_designator: SWAGED AND THREADED EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-169-4891, 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
AC1049C12
NSN: 4730-00-169-4891
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialSTEEL COMP XM-10 OVERALL
seat_angle37.0 DEGREES SECOND END
thread_class3A SECOND END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE SECOND END BULKHEAD
connection_styleFLARED (TUBE) SECOND END
special_featuresTHE INTERNAL SURFACE OF THE PERMASWAGE END,WILL BE POLYTETRAFLOROETHYLENE COATED,PER DEUTSCH CO,SPEC NO. DMCPS1009,TO 0.365 IN. MIN 0.390 IN. MAX,INTO THE FITTING BORE IN
style_designatorSWAGED AND THREADED EXTERNAL
surface_treatmentPASSIVATE OVERALL
nominal_thread_size1.062 INCHES SECOND END IN
nominal_overall_length3.470 INCHES IN
thread_quantity_per_inch12 SECOND END BULKHEAD
thread_series_designatorUN SECOND END
NSN4730-00-169-4891
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AC1049C12 · 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-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
•
CONNECTION STYLE: FLARED (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 3.470 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE SECOND END BULKHEAD
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLESWAGED W/ GROOVES (TUBE) FIRST END
NOMINAL OVERALL LENGTH3.470 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END BULKHEAD
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
STYLE DESIGNATORSWAGED AND THREADED EXTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5656 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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 3
LD83027-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
D10046-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
H10046-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AC1049C12?
AC1049C12 is a COUPLING,TUBE.
What parts can replace AC1049C12?
There are 3 known substitutes for AC1049C12: LD83027-12, D10046-12, H10046-12. Substitute compatibility should be verified for your specific system.
What is the NSN for AC1049C12?
AC1049C12 is cataloged in the U.S. Government catalog under NSN 4730-00-169-4891. 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.