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Technical Data Sheet
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B604-1 — FERRULE,BRAZING,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B604-1: FERRULE,BRAZING,TUBE FITTING.

The FERRULE,BRAZING,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, flange_width: 0.046 INCHES NOMINAL IN, overall_length: 0.094 INCHES NOMINAL IN, style_designator: COMPRESSION, seat_angle_in_deg: 45.0, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-772-1666, 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
B604-1
NSN: 4730-00-772-1666
NIINs: 007721666, 010171472
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
flange_width0.046 INCHES NOMINAL IN
overall_length0.094 INCHES NOMINAL IN
style_designatorCOMPRESSION
seat_angle_in_deg45.0
casehardening_indicatorNOT CASEHARDENED
flange_outside_diameter0.500 INCHES NOMINAL IN
sleeve_outside_diameter0.438 INCHES NOMINAL IN
criticality_code_justificationZZZY
hose/tube_outside_diameter_for_which_designed0.375 INCHES NOMINAL IN
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
NSN4730-00-772-1666
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B604-1 · 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
•
SEAT ANGLE IN DEG: 45.0
•
STYLE DESIGNATOR: COMPRESSION
•
SLEEVE OUTSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
FLANGE WIDTH: 0.046 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
FLANGE OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG45.0
STYLE DESIGNATORCOMPRESSION
OVERALL LENGTH0.094 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER0.438 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
FLANGE WIDTH0.046 INCHES NOMINAL IN
MATERIALCOPPER ALLOY
FLANGE OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
300-624P6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6BF6BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6-BF 6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B604-1?
B604-1 is a FERRULE,BRAZING,TUBE FITTING.
What parts can replace B604-1?
There are 3 known substitutes for B604-1: 300-624P6, 6BF6B, 6-BF 6. Substitute compatibility should be verified for your specific system.
What is the NSN for B604-1?
B604-1 is cataloged in the U.S. Government catalog under NSN 4730-00-772-1666. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.