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151-34374 — BOLT,FLUID PASSAGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

151-34374: BOLT,FLUID PASSAGE.

The BOLT,FLUID PASSAGE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130, body_style: SHOULDER, head_diameter: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN, overall_length: 2.781 INCHES NOMINAL IN, hardness_rating: 31.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM, surface_treatment: CHROMIUM. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-238-3549, 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
151-34374
NSN: 4730-00-238-3549
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43999 — THE BOEING COMPANY DIV LEGACY AM&M (USA)
SPECIFICATIONS
materialSTEEL COMP 4130
body_styleSHOULDER
head_diameter0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
overall_length2.781 INCHES NOMINAL IN
hardness_rating31.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
surface_treatmentCHROMIUM
concentric_hole_depth2.438 INCHES NOMINAL IN
first_end_thread_class3A A
first_end_thread_length0.406 INCHES NOMINAL IN
second_end_thread_class2B
wrenching_feature_styleROUND
concentric_hole_diameter0.062 INCHES NOMINAL IN
NSN4730-00-238-3549
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 151-34374 · 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: 2.281 INCHES NOMINAL IN
•
SECOND END THREAD CLASS: 2B
•
BODY STYLE: SHOULDER
•
FIRST END THREAD CLASS: 3A A
•
COTTER PIN HOLE DIAMETER: 0.106 INCHES NOMINAL IN
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 DIAMETER2.281 INCHES NOMINAL IN
SECOND END THREAD CLASS2B
BODY STYLESHOULDER
FIRST END THREAD CLASS3A A
COTTER PIN HOLE DIAMETER0.106 INCHES NOMINAL IN
FIRST END STYLE DESIGNATORPLAIN
SECOND DIAMETER FROM WRENCHING FEATURE0.312 INCHES NOMINAL IN
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 151-34374?
151-34374 is a BOLT,FLUID PASSAGE.
What is the NSN for 151-34374?
151-34374 is cataloged in the U.S. Government catalog under NSN 4730-00-238-3549. This indicates validated use in U.S. government and defense supply chains.
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