AN938 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Fitting, tee, tube internal thread |
| Status | Check the current issue of the standard before design use. |
Dimensions by size
| Dimension, in | -4 | -5 | -6 | -8 | -10 |
|---|---|---|---|---|---|
| OD — Tube O.D. | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 |
| T — Thread T (ref.) | 7/16-20 | 1/2-20 | 9/16-18 | 3/4-16 | 7/8-14 |
| C — C dia. | 11/16 | 3/4 | 13/16 | 1-1/16 | 1-3/16 |
| H — H (approx.) | 3/4 | 3/4 | 13/16 | 1-1/16 | 1-3/16 |
| K — K (+3/32/-0) | 1-1/2 | 1-1/2 | 1-5/8 | 2 | 2-5/16 |
| R — R (approx.) | 3/4 | 7/8 | 7/8 | 1-1/16 | 1-3/16 |
| S — S (approx.) | 1/2 | 9/16 | 9/16 | 11/16 | 3/4 |
Dimensions in inches as tabulated in the catalogue listing; the standard governs. Blank cells: not stated in the listing.
Part numbers
| Part no. | Size | Tube O.D. | Thread T (ref.) |
|---|---|---|---|
| AN938-4 | 1/4 | 1/4 | 7/16-20 |
| AN938-5 | 5/16 | 5/16 | 1/2-20 |
| AN938-6 | 3/8 | 3/8 | 9/16-18 |
| AN938-8 | 1/2 | 1/2 | 3/4-16 |
| AN938-10 | 5/8 | 5/8 | 7/8-14 |
Part numbers as listed. The standard governs and may list other sizes.
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | AN938<material><dash> |
| D | Material: Aluminum |
| - | Material: Steel |
| Example | AN938-4 — Steel, 1/4 in tube |
Notes from the standard
- Cells printed once across several rows in the listing are repeated on each row they span. R and S for -5 and -6 are one cell each (7/8 and 9/16); H and K for -4 and -5 likewise.
- Part number: D after AN938 for aluminum, a dash for steel.
Where to buy
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Sources
- AN938 — Tee, Tube, Internal Thread — 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.