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Technical Data Sheet
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578629-1 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

578629-1: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140, body_style: SHOULDER, head_diameter: 0.875 INCHES NOMINAL IN, overall_length: 2.348 INCHES NOMINAL IN, special_features: CHROME PLATE EXT THD AREA, surface_treatment: CADMIUM. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-588-2003, 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
578629-1
NSN: 4730-00-588-2003
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 6K4C8 — GOODRICH CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4140
body_styleSHOULDER
head_diameter0.875 INCHES NOMINAL IN
overall_length2.348 INCHES NOMINAL IN
special_featuresCHROME PLATE EXT THD AREA
surface_treatmentCADMIUM
concentric_hole_depth1.180 INCHES NOMINAL IN
second_end_seat_angle45.0 DEGREES NOMINAL
first_end_thread_class3A A
end_item_identificationUSED ON F106 AIRCRAFT
first_end_thread_length0.526 INCHES NOMINAL IN
second_end_thread_class2B
NSN4730-00-588-2003
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 578629-1 · 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
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END NOMINAL THREAD SIZE: 0.250 INCHES IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 1.510 INCHES NOMINAL IN
•
SECOND END THREAD CLASS: 2B
•
BODY STYLE: SHOULDER
•
DISTANCE FROM CENTERLINE TO FLAT: 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
FIRST END THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END NOMINAL THREAD SIZE0.250 INCHES IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER1.510 INCHES NOMINAL IN
SECOND END THREAD CLASS2B
BODY STYLESHOULDER
DISTANCE FROM CENTERLINE TO FLAT0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORPLAIN
SECOND DIAMETER FROM WRENCHING FEATURE0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
578629Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 578629-1?
578629-1 is a BOLT,FLUID PASSAGE.
What parts can replace 578629-1?
There is 1 known substitute for 578629-1: 578629. Substitute compatibility should be verified for your specific system.
What is the NSN for 578629-1?
578629-1 is cataloged in the U.S. Government catalog under NSN 4730-00-588-2003. This indicates validated use in U.S. government and defense supply chains.
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