PartsTable
Technical Data Sheet
3147331-2 ✓ 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include material: COPPER ALLOY OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.625 INCHES NOMINAL FIRST END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-956-5238, 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
3147331-2
NSN: 4730-00-956-5238
FSC: 4730
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle90.0 DEGREES
leg_length0.625 INCHES NOMINAL FIRST END IN
seat_angle12.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) FIRST END
nominal_thread_size0.375 INCHES FIRST END IN
thread_series_designatorNPT SECOND END
furnished_items_and_quantity1 TUBE COUPLING NUT W/SLEEVE
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
tubing_wall_nominal_thickness_for_which_designed0.030 INCHES FIRST END IN
NSN4730-00-956-5238
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3147331-2 · 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
LEG LENGTH: 0.625 INCHES NOMINAL FIRST END IN
FURNISHED ITEMS AND QUANTITY: 1 TUBE COUPLING NUT W/SLEEVE
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.030 INCHES FIRST END IN
THREAD CLASS: 2A FIRST END A
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: NPT SECOND END
CONNECTION STYLE: FLARELESS (TUBE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
LEG LENGTH0.625 INCHES NOMINAL FIRST END IN
FURNISHED ITEMS AND QUANTITY1 TUBE COUPLING NUT W/SLEEVE
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.030 INCHES FIRST END IN
THREAD CLASS2A FIRST END A
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT SECOND END
LEG LENGTH0.750 INCHES NOMINAL SECOND END IN
CONNECTION STYLEFLARELESS (TUBE) FIRST END
FLOW ANGLE90.0 DEGREES
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
612687Interchangeable
interchangeable cross-reference
interchangeable
564101PC75Interchangeable
interchangeable cross-reference
interchangeable
1622-01Interchangeable
interchangeable cross-reference
interchangeable
9000S6505-73214PC75Interchangeable
interchangeable cross-reference
interchangeable
ST57D65-11Interchangeable
interchangeable cross-reference
interchangeable
269P-1-4X1-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3147331-2?
3147331-2 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 3147331-2?
There are 24 known substitutes for 3147331-2: 612687, 564101PC75, 1622-01 and 21 more. Substitute compatibility should be verified for your specific system.
Is 3147331-2 still available?
3147331-2 is currently cancelled.
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