AEROQUIP-666 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Hose |
| Status | Hose sizes -3 to -8 as listed; the -3 part number is printed AE240-3. |
Dimensions by size
| Dimension, in | -3 | -4 | -5 | -6 | -8 |
|---|---|---|---|---|---|
| ID — Hose I.D. (min.) | .125 | .188 | .250 | .313 | .406 |
| OD — Hose O.D. (max.) | .268 | .343 | .406 | .469 | .585 |
| BR — Min. bend radius, in | 1.50 | 2.00 | 2.00 | 4.00 | 4.62 |
| OP — Operating, psi | 1500 | 1500 | 1500 | 1500 | 1500 |
| PR — Proof, psi | 3000 | 3000 | 3000 | 3000 | 3000 |
| BU — Min. burst, psi | 7500 | 12000 | 10000 | 9000 | 8000 |
| TH — Fitting thread | .375-24 | .4375-20 | .500-20 | .5625-18 | .750-16 |
| LC — Size code letter | B | E | F | G | H |
| PN — Hose part no. as printed | AE240-3 | 666-4 | 666-5 | 666-6 | 666-8 |
Dimensions in inches as tabulated in the catalogue listing; the standard governs. Blank cells: not stated in the listing.
Part numbers
| Part no. | Size | Hose I.D. (min.), in | Hose O.D. (max.), in | Fitting thread | Hose part no. |
|---|---|---|---|---|---|
| AE240-3 | .125 | .125 | .268 | .375-24 | AE240-3 |
| 666-4 | .188 | .188 | .343 | .4375-20 | 666-4 |
| 666-5 | .250 | .250 | .406 | .500-20 | 666-5 |
| 666-6 | .313 | .313 | .469 | .5625-18 | 666-6 |
| 666-8 | .406 | .406 | .585 | .750-16 | 666-8 |
Part numbers as listed. The standard governs and may list other sizes.
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | 666-<dash> |
| Example | 666-6 — Hose size -6 |
Notes from the standard
- Hose sizes -3 to -8. Construction: spiral extruded Teflon inner tube reinforced with stainless steel, covered with a Type 300 series steel wire braid; fluid temperature -65°F to +275°F; hose and compression fittings comply with MIL-DTL-25579C (1500 psi).
- Conductivity: the liner conducts at least 10 µA (sizes 4 to 8) at 1,000 volts. Aluminum compression-crimp fittings (nut 2024-T851, nipple 2024-T851, socket 304 steel, wire 305).
- Assembly key AE3660000 - G - 0185 (MS style, corrosion resistant steel: base AE3660240 for -3 and -4, AE3660000 for -4 to -8; nipple AE21740 / AE21496). The socket must be ordered separately.
- The -3 hose is printed as AE240-3 in the part number row.
Where to buy
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Distributors coming soon.
Sources
- AEROQUIP-666 — Aeroquip 666 Medium Pressure Teflon Hose, Wire Reinforced — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.