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AN815-4J — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AN815-4J: 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: 2B ALL ENDS, connection_type: THREADED EXTERNAL TUBE ALL ENDS, style_designator: FLARED W/ CENTER WRENCHING FACILITY, surface_treatment: PASSIVATE OVERALL, nominal_thread_size: 0.4375 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-875-8264, 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
AN815-4J
NSN: 4730-00-875-8264
NIINs: 008758264, 011616270, 016613216
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78022 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
thread_class2B ALL ENDS
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
style_designatorFLARED W/ CENTER WRENCHING FACILITY
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.4375 INCHES ALL ENDS IN
nominal_overall_length1.250 INCHES IN
thread_quantity_per_inch20.0 ALL ENDS
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classificationAMS-QQ-S763 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OR AMS 5648 NATIONAL STD/SPEC 1ST MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationSAE AMS 2700 METHOD 1 TYPE 6 OR 7 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-875-8264
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN815-4J · 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: FLARED W/ GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.250 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
LEG LENGTH: 0.550 INCHES NOMINAL ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH1.250 INCHES IN
CRITICALITY CODE JUSTIFICATIONAGAV
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
LEG LENGTH0.550 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA81343-AS5174 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
SURFACE TREATMENTPASSIVATE INSIDE
SUBSTITUTES & CROSS-REFERENCES 4
AS5174J0404Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
P35847Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9462065020Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AS5174J0404CPReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AN815-4J?
AN815-4J is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AN815-4J?
There are 4 known substitutes for AN815-4J: AS5174J0404, P35847, 9462065020 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN815-4J?
AN815-4J is cataloged in the U.S. Government catalog under NSN 4730-00-875-8264. 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.