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AN816-6S — Technical Data Sheet

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— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OVERALL, thread_class: 3A SECOND END A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: PLAIN (PIPE) FIRST END, special_features: CENTER WRENCHING FACILITY; WEAPON SYSTEM ESSENTIAL, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-0359, 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
AN816-6S
NSN: 4730-00-289-0359
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
thread_class3A SECOND END A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_stylePLAIN (PIPE) FIRST END
special_featuresCENTER WRENCHING FACILITY; WEAPON SYSTEM ESSENTIAL
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.562 INCHES SECOND END IN
maximum_operating_temp225.0 FAHRENHEIT FIRST RESPONSE DEGF
nominal_overall_length1.375 INCHES IN
end_item_identificationGRUMMAN A-10 ACFT; SUPPORT EQUIPMENT, B-1 AIRCRAFT; TRUCK, FIRE/CRASH P12; AIRCRAFT, F16; 485L TACS; GALAXY C-5; HERCULES C-130; STRATOLIFTER C-135; PHANTOM F-4
media_for_which_designedHYDRAULIC FLUID FIRST RESPONSE
NSN4730-00-289-0359
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN816-6S · 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 (PIPE) FIRST END
•
NOMINAL THREAD SIZE: 0.562 INCHES SECOND END IN
•
THREAD CLASS: 3A SECOND END A
•
MAXIMUM OPERATING TEMP: 225.0 FAHRENHEIT FIRST RESPONSE DEGF
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SPECIFICATION/STANDARD DATA: 88044-AN816 GOVERNMENT STANDARD AND 81343-AS4842/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL THREAD SIZE0.562 INCHES SECOND END IN
THREAD CLASS3A SECOND END A
END ITEM IDENTIFICATIONGRUMMAN A-10 ACFT; SUPPORT EQUIPMENT, B-1 AIRCRAFT; TRUCK, FIRE/CRASH P12; AIRCRAFT, F16; 485L TACS; GALAXY C-5; HERCULES C-130; STRATOLIFTER C-135; PHANTOM F-4
MAXIMUM OPERATING TEMP225.0 FAHRENHEIT FIRST RESPONSE DEGF
SURFACE TREATMENTPASSIVATE OVERALL
SPECIFICATION/STANDARD DATA88044-AN816 GOVERNMENT STANDARD AND 81343-AS4842/1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
THREAD SERIES DESIGNATORANPT FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
AS4842/1Interchangeable
Same NIIN cross-reference
interchangeable
AS5194R0604Interchangeable
Same NIIN cross-reference
interchangeable
SAE-AS4842/1Interchangeable
Same NIIN cross-reference
interchangeable
CE816-6SSInterchangeable
Adapter,straight,pipe to Boss
interchangeable
MIL-F-5509Interchangeable
Adapter,straight,pipe to Boss
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN816-6S?
AN816-6S is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AN816-6S?
There are 5 known substitutes for AN816-6S: AS4842/1, AS5194R0604, SAE-AS4842/1 and 2 more. Substitute compatibility should be verified for your specific system.
Is AN816-6S still available?
AN816-6S is currently cancelled.
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Last verified: September 2026