PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 845-4788683
845-4788683 ✓ Verified by PartsTable
— · 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,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include material: NICKEL OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-166-1081, 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
845-4788683
NSN: 4730-01-166-1081
FSC: 4730
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.438 INCHES FIRST END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.850 INCHES IN
thread_series_designatorUNF FIRST END
nominal_inside_diameter_hose_accommodated0.190 INCHES SECOND END IN
nominal_outside_diameter_hose_accommodated0.520 INCHES SECOND END IN
NSN4730-01-166-1081
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 845-4788683 · 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 OUTSIDE DIAMETER HOSE ACCOMMODATED: 2.750 INCHES FIRST END IN
•
NONDEFINITIVE SPEC/STD DATA: C TYPE AND 1 CLASS
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING FIRST END
•
THREAD PITCH DIAMETERS: +0.2016 TO 0.3062 INCHES SECOND END IN
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 2.016 INCHES FIRST END IN
•
THREAD CLASS: 3A SECOND END A
•
NOMINAL THREAD SIZE: 3.062 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED2.750 INCHES FIRST END IN
NONDEFINITIVE SPEC/STD DATAC TYPE AND 1 CLASS
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
THREAD PITCH DIAMETERS+0.2016 TO 0.3062 INCHES SECOND END IN
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED2.016 INCHES FIRST END IN
THREAD CLASS3A SECOND END A
NOMINAL THREAD SIZE3.062 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
SPECIFICATION/STANDARD DATA81349-MIL-H-24135 GOVERNMENT SPECIFICATION
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
4-190909 3-8 8Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-24135Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/3 GRI TY CInterchangeable
interchangeable cross-reference
interchangeable
M24787/3,TY-C,GR-I,-20 1Interchangeable
interchangeable cross-reference
interchangeable
4-190909-1-20Interchangeable
interchangeable cross-reference
interchangeable
19-02-5145Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 845-4788683?
845-4788683 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 845-4788683?
There are 24 known substitutes for 845-4788683: 4-190909 3-8 8, MIL-H-24135, MIL-F-24787/3 GRI TY C and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 845-4788683?
845-4788683 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-166-1081. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026