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Technical Data Sheet
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639AS766 — PLUG,TUBE REPAIR,EXPANDING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

639AS766: PLUG,TUBE REPAIR,EXPANDING.

The PLUG,TUBE REPAIR,EXPANDING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-01-072-6161, 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
639AS766
NSN: 4730-01-072-6161
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 60763 — CCB INDUSTRIES, INC. (USA)
SPECIFICATIONS
Part Number639AS766
NSN4730-01-072-6161
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 639AS766 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL,CORROSION RESISTING;ITEMS 2AND 4 ARE PASSIVATED;ITEM 2 IS 0.590 IN. MIN AND 0.650 IN MAX DIA,0.030 IN.MIN AND 0.090 IN MAX H,CENTER HOLE IS 0.125 IN. DIA;ITEM 3 IS 0.415 IN. DIA AND 0.220 IN. MIN AND 0.280 MAX H,CENTER HOLE IS 0.125 IN. DIA; ITEM 4 IS 0.350 IN. MIN AND 0.410 IN. MAX DIA,0.060 IN. MIN AND 0.120 IN. MAX H,CENTER HOLE IS 0.112 IN. DIA,THREAD SERIES UNC,40 THREADS PER INCH,THREAD CLASS 2B IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL,CORROSION RESISTING;ITEMS 2AND 4 ARE PASSIVATED;ITEM 2 IS 0.590 IN. MIN AND 0.650 IN MAX DIA,0.030 IN.MIN AND 0.090 IN MAX H,CENTER HOLE IS 0.125 IN. DIA;ITEM 3 IS 0.415 IN. DIA AND 0.220 IN. MIN AND 0.280 MAX H,CENTER HOLE IS 0.125 IN. DIA; ITEM 4 IS 0.350 IN. MIN AND 0.410 IN. MAX DIA,0.060 IN. MIN AND 0.120 IN. MAX H,CENTER HOLE IS 0.112 IN. DIA,THREAD SERIES UNC,40 THREADS PER INCH,THREAD CLASS 2B 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 639AS766?
639AS766 is a PLUG,TUBE REPAIR,EXPANDING.
What is the NSN for 639AS766?
639AS766 is cataloged in the U.S. Government catalog under NSN 4730-01-072-6161. This indicates validated use in U.S. government and defense supply chains.
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