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7M57C6 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

7M57C6: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, body_style: BODY WRENCHING, overall_length: 2.053 INCHES NOMINAL IN, width_across_flats: 0.813 INCHES NOMINAL IN, first_end_thread_class: 3A A, wrenching_feature_style: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-409-5672, 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
7M57C6
NSN: 4730-00-409-5672
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
body_styleBODY WRENCHING
overall_length2.053 INCHES NOMINAL IN
width_across_flats0.813 INCHES NOMINAL IN
first_end_thread_class3A A
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.297 INCHES NOMINAL IN
wrenching_feature_height0.156 INCHES NOMINAL IN
first_end_connection_typeTHREADED EXTERNAL TUBE
first_end_thread_directionRIGHT-HAND
second_end_connection_typeTHREADED EXTERNAL TUBE
second_end_style_designatorFLARED
NSN4730-00-409-5672
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7M57C6 · 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
•
WIDTH ACROSS FLATS: 0.813 INCHES NOMINAL IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 1.094 INCHES NOMINAL IN
•
BODY STYLE: BODY WRENCHING
•
FIRST END THREAD CLASS: 3A A
•
FIRST END THREAD QUANTITY PER INCH: 18
•
WRENCHING FEATURE HEIGHT: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.813 INCHES NOMINAL IN
FIRST END THREAD DIRECTIONRIGHT-HAND
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER1.094 INCHES NOMINAL IN
BODY STYLEBODY WRENCHING
FIRST END THREAD CLASS3A A
FIRST END THREAD QUANTITY PER INCH18
WRENCHING FEATURE HEIGHT0.156 INCHES NOMINAL IN
WRENCHING FEATURE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7M57C6?
7M57C6 is a BOLT,FLUID PASSAGE.
What is the NSN for 7M57C6?
7M57C6 is cataloged in the U.S. Government catalog under NSN 4730-00-409-5672. 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.