PartsTable
Technical Data Sheet
AT 3-4IN ✓ 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 CONNECTOR,PLUG,ELECTRICAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SCREENING, temp_rating: 425.0 FAHRENHEIT NOMINAL DEGF, mounting_type: INLET CONNECTION AND OUTLET CONNECTION LINE, style_designator: Y STRAINER W/THREADED COVER, operating_pressure: 400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS, perforation_diameter: 0.016 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-853-1655, 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
AT 3-4IN
NSN: 4730-00-853-1655
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialCOPPER ALLOY SCREENING
temp_rating425.0 FAHRENHEIT NOMINAL DEGF
mounting_typeINLET CONNECTION AND OUTLET CONNECTION LINE
style_designatorY STRAINER W/THREADED COVER
operating_pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
perforation_diameter0.016 INCHES NOMINAL IN
perforation_quantity625.0 PER SQUARE INCH
filtering_media_designPERFORATED SINGLE FILTERING MEDIA RESPONSE
media_for_which_designedFUEL/OIL, HYDROCARBON AND GAS AND WATER
first_intake_connection_typeTHREADED INTERNAL PIPE LINE
first_intake_thread_directionRIGHT-HAND
first_intake_nominal_thread_size0.750 INCHES IN
NSN4730-00-853-1655
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AT 3-4IN · 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
FIRST INTAKE NOMINAL THREAD SIZE: 0.750 INCHES IN
FIRST INTAKE THREAD SERIES DESIGNATOR: NPT
MEDIA FOR WHICH DESIGNED: FUEL/OIL, HYDROCARBON AND GAS AND WATER
FIRST INTAKE THREAD DIRECTION: RIGHT-HAND
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTION: IDENTICAL TO FIRST INTAKE CONNECTION
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
FILTERING MEDIA DESIGN: PERFORATED SINGLE FILTERING MEDIA RESPONSE
FIRST INTAKE CONNECTION TYPE: THREADED INTERNAL PIPE LINE
TECHNICAL CHARACTERISTICS (FLIS)
FIRST INTAKE NOMINAL THREAD SIZE0.750 INCHES IN
FIRST INTAKE THREAD SERIES DESIGNATORNPT
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON AND GAS AND WATER
FIRST INTAKE THREAD DIRECTIONRIGHT-HAND
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTIONIDENTICAL TO FIRST INTAKE CONNECTION
STYLE DESIGNATORY STRAINER W/THREADED COVER
FILTERING MEDIA DESIGNPERFORATED SINGLE FILTERING MEDIA RESPONSE
FIRST INTAKE CONNECTION TYPETHREADED INTERNAL PIPE LINE
MATERIALCOPPER ALLOY SCREENING
MATERIALIRON CAST BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
AT 3-4INInterchangeable
interchangeable cross-reference
interchangeable
17138Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AT 3-4IN?
AT 3-4IN is a CONNECTOR,PLUG,ELECTRICAL.
What parts can replace AT 3-4IN?
There are 2 known substitutes for AT 3-4IN: AT 3-4IN, 17138. Substitute compatibility should be verified for your specific system.
Is AT 3-4IN still available?
AT 3-4IN is currently cancelled.
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