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AS4859K04 — ADAPTER,STRAIGHT,PIPE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS4859K04: ADAPTER,STRAIGHT,PIPE TO BOSS.

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) FIRST END, style_designator: RIGID, SHORT CENTER WRENCHING FACILITY, surface_treatment: PASSIVATE OUTSIDE, nominal_thread_size: 0.500 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-928-8769, 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
AS4859K04
NSN: 4730-00-928-8769
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) FIRST END
style_designatorRIGID, SHORT CENTER WRENCHING FACILITY
surface_treatmentPASSIVATE OUTSIDE
nominal_thread_size0.500 INCHES FIRST END IN
nominal_overall_length1.594 INCHES IN
thread_series_designatorNPT FIRST END
specification/standard_data88044-AN910 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_pipe_size_accommodated0.500 INCHES FIRST END IN
material_document_and_classificationQQ-S-766,CLASS 316,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-928-8769
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4859K04 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.500 INCHES FIRST END IN
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 1.594 INCHES IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
STYLE DESIGNATOR: RIGID, SHORT CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766,CLASS 316,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES FIRST END IN
•
SPECIFICATION/STANDARD DATA: 88044-AN910 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH1.594 INCHES IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
STYLE DESIGNATORRIGID, SHORT CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,CLASS 316,1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.500 INCHES FIRST END IN
SPECIFICATION/STANDARD DATA88044-AN910 GOVERNMENT STANDARD AND 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTPASSIVATE OUTSIDE
MATERIALSTEEL COMP 316 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
SAE-AS4842Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
MIL-F-5509Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS4842Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 AS4859K04?
AS4859K04 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AS4859K04?
There are 3 known substitutes for AS4859K04: SAE-AS4842, MIL-F-5509, AS4842. Substitute compatibility should be verified for your specific system.
What is the NSN for AS4859K04?
AS4859K04 is cataloged in the U.S. Government catalog under NSN 4730-00-928-8769. This indicates validated use in U.S. government and defense supply chains.
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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.