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FC11257D — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

FC11257D: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1113, body_style: RELIEVED, overall_length: 2.031 INCHES NOMINAL IN, surface_treatment: ZINC, width_across_flats: 0.750 INCHES NOMINAL IN, second_end_seat_angle: 45.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-200-0442, 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
FC11257D
NSN: 4730-00-200-0442
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 1113
body_styleRELIEVED
overall_length2.031 INCHES NOMINAL IN
surface_treatmentZINC
width_across_flats0.750 INCHES NOMINAL IN
second_end_seat_angle45.0 DEGREES NOMINAL
first_end_thread_class3A A
first_end_thread_length0.562 INCHES NOMINAL IN
second_end_thread_class2B
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.156 INCHES NOMINAL IN
second_end_thread_length0.593 INCHES NOMINAL IN
NSN4730-00-200-0442
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: FC11257D · 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: 0.750 INCHES NOMINAL IN
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
SECOND END NOMINAL THREAD SIZE: 0.438 INCHES IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.203 INCHES NOMINAL IN
•
SECOND END THREAD CLASS: 2B
•
THIRD DIAMETER FROM WRENCHING FEATURE: 0.526 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
•
BODY STYLE: RELIEVED
TECHNICAL CHARACTERISTICS
FIRST END THREAD SERIES DESIGNATORUNF
WIDTH ACROSS FLATS0.750 INCHES NOMINAL IN
FIRST END THREAD DIRECTIONRIGHT-HAND
SECOND END NOMINAL THREAD SIZE0.438 INCHES IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.203 INCHES NOMINAL IN
SECOND END THREAD CLASS2B
THIRD DIAMETER FROM WRENCHING FEATURE0.526 INCHES MINIMUM AND 0.529 INCHES MAXIMUM IN
BODY STYLERELIEVED
FIRST END THREAD CLASS3A A
FIRST END STYLE DESIGNATORPLAIN
SUBSTITUTES & CROSS-REFERENCES 5
8710675Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
F11257DReference document
Same NSN cross-reference
Reference document — Secondary reference
FC11257Reference document
Same NSN cross-reference
Reference document — Secondary reference
8710709Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
F11257Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FC11257D?
FC11257D is a BOLT,FLUID PASSAGE.
What parts can replace FC11257D?
There are 5 known substitutes for FC11257D: 8710675, F11257D, FC11257 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FC11257D?
FC11257D is cataloged in the U.S. Government catalog under NSN 4730-00-200-0442. 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.