PartsTable
Technical Data Sheet
851-FB-02X02 ✓ 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

CONTACT STRIP,RADIO FREQUENCY GR. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 0.766 INCHES NOMINAL FIRST END IN, seat_angle: 37.0 DEGREES THIRD END, thread_class: 2A THIRD END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: FLARED (TUBE) THIRD END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-315-2578, 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
851-FB-02X02
NSN: 4730-01-315-2578
FSC: 4730
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.766 INCHES NOMINAL FIRST END IN
seat_angle37.0 DEGREES THIRD END
thread_class2A THIRD END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleFLARED (TUBE) THIRD END
nominal_thread_size0.312 INCHES THIRD END IN
thread_series_designatorUNF THIRD END
nondefinitive_spec/std_data3C FIGURE
specification/standard_data81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
furnished_items_and_quantity2 TUBE COUPLING NUT W/SLEEVE
nominal_outside_diameter_tube_accommodated0.125 INCHES THIRD END IN
NSN4730-01-315-2578
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 851-FB-02X02 · 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 TUBE ACCOMMODATED: 0.125 INCHES THIRD END IN
CONNECTION STYLE: PLAIN (PIPE) SECOND END
LEG LENGTH: 0.766 INCHES NOMINAL THIRD END IN
NONDEFINITIVE SPEC/STD DATA: 3C FIGURE
THREAD SERIES DESIGNATOR: NPTF SECOND END
SPECIFICATION/STANDARD DATA: 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIAL: COPPER ALLOY OVERALL
FURNISHED ITEMS AND QUANTITY: 2 TUBE COUPLING NUT W/SLEEVE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.125 INCHES THIRD END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
LEG LENGTH0.766 INCHES NOMINAL THIRD END IN
NONDEFINITIVE SPEC/STD DATA3C FIGURE
THREAD SERIES DESIGNATORNPTF SECOND END
SPECIFICATION/STANDARD DATA81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MATERIALCOPPER ALLOY OVERALL
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING NUT W/SLEEVE
THREAD SERIES DESIGNATORUNF THIRD END
THREAD SERIES DESIGNATORUNF FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
SMB587790Interchangeable
interchangeable cross-reference
interchangeable
127AInterchangeable
interchangeable cross-reference
interchangeable
G239PC127AInterchangeable
interchangeable cross-reference
interchangeable
SFR166PPK26-7Interchangeable
interchangeable cross-reference
interchangeable
SC500-107Interchangeable
interchangeable cross-reference
interchangeable
5012-28Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 851-FB-02X02?
851-FB-02X02 is a CONTACT STRIP,RADIO FREQUENCY GR.
What parts can replace 851-FB-02X02?
There are 14 known substitutes for 851-FB-02X02: SMB587790, 127A, G239PC127A and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 851-FB-02X02?
851-FB-02X02 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-315-2578. This indicates validated use in U.S. government and defense supply chains.
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