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AS5173J1208 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS5173J1208: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, thread_class: 3B SECOND END, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: GASKET SEAL (BOSS) SECOND END, nominal_thread_size: 0.750 INCHES FIRST END IN, nominal_overall_length: 1.922 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-277-1401, 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
AS5173J1208
NSN: 4730-01-277-1401
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thread_class3B SECOND END
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleGASKET SEAL (BOSS) SECOND END
nominal_thread_size0.750 INCHES FIRST END IN
nominal_overall_length1.922 INCHES IN
thread_quantity_per_inch12 SECOND END
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
specification/standard_data88044-AN894 GOVERNMENT STANDARD AND 81343-AS4875/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END IN
NSN4730-01-277-1401
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS5173J1208 · 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
•
CONNECTION STYLE: PLAIN (TUBE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.922 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
NOMINAL OVERALL LENGTH1.922 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
NOMINAL THREAD SIZE1.062 INCHES SECOND END IN
SPECIFICATION/STANDARD DATA88044-AN894 GOVERNMENT STANDARD AND 81343-AS4875/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
THREAD CLASS3A FIRST END A
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 4
AS5173Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS4875/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
AN894J12-8Reference 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 AS5173J1208?
AS5173J1208 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS5173J1208?
There are 4 known substitutes for AS5173J1208: AS5173, SAE-AS4875/1, MIL-F-5509 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS5173J1208?
AS5173J1208 is cataloged in the U.S. Government catalog under NSN 4730-01-277-1401. 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.