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Technical Data Sheet
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4429K312 — 4429K312

✓ Government record, cited
MCMASTER-CARR SUPPLY CO · HOSE FITTING
PRODUCT OVERVIEW

4429K312: 4429K312.

The 4429K312 is a MCMASTER-CARR SUPPLY CO industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-453-5025, 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
4429K312
NSN: 4730-01-453-5025
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
Part Number4429K312
ManufacturerMCMASTER-CARR SUPPLY CO
NSN4730-01-453-5025
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4429K312 · MCMASTER-CARR SUPPLY CO ⚠ 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
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.250 INCHES IN
•
DRIVE END STYLE: SQUARE
•
MATERIAL: BRASS OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.250 INCHES IN
DRIVE END STYLESQUARE
END ITEM IDENTIFICATIONSUPPORT EQUIPMENT (SE), B-2 BOMBER
MATERIALBRASS OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4429K312?
4429K312 is a 4429K312 manufactured by MCMASTER-CARR SUPPLY CO.
What is the NSN for 4429K312?
4429K312 is cataloged in the U.S. Government catalog under NSN 4730-01-453-5025. This indicates validated use in U.S. government and defense supply chains.
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