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MC2331 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MC2331: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL, body_style: PLAIN, overall_length: 1.130 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN, surface_treatment: PASSIVATE, width_across_flats: 0.362 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN, concentric_hole_depth: 0.770 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-039-8920, 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
MC2331
NSN: 4730-01-039-8920
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76050 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV M.C.AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL
body_stylePLAIN
overall_length1.130 INCHES MINIMUM AND 1.170 INCHES MAXIMUM IN
surface_treatmentPASSIVATE
width_across_flats0.362 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
concentric_hole_depth0.770 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
second_end_thread_class2A A
wrenching_feature_styleHEXAGON
concentric_hole_diameter0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
second_end_thread_length0.290 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
wrenching_feature_height0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
second_end_style_designatorPLAIN
NSN4730-01-039-8920
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MC2331 · 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
•
WIDTH ACROSS FLATS: 0.362 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
•
SECOND END THREAD QUANTITY PER INCH: 20
•
SECOND END NOMINAL THREAD SIZE: 0.250 INCHES IN
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER: 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
•
SECOND END THREAD CLASS: 2A A
•
BODY STYLE: PLAIN
•
CONCENTRIC HOLE DEPTH: 0.770 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
•
WRENCHING FEATURE HEIGHT: 0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.362 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN
SECOND END THREAD QUANTITY PER INCH20
SECOND END NOMINAL THREAD SIZE0.250 INCHES IN
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO END OF FIRST DIAMETER0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
SECOND END THREAD CLASS2A A
BODY STYLEPLAIN
CONCENTRIC HOLE DEPTH0.770 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
WRENCHING FEATURE HEIGHT0.160 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
SECOND END THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WRENCHING FEATURE STYLEHEXAGON
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 MC2331?
MC2331 is a BOLT,FLUID PASSAGE.
What is the NSN for MC2331?
MC2331 is cataloged in the U.S. Government catalog under NSN 4730-01-039-8920. 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.