fittings › boss nipples
AN815-12
Steel Union
Description
Union
Specifications
| Alternate Item Number | AS5174-1212 |
|---|---|
| Alternate Part Number | AS5174-1212 |
| Connection Style | Flared with gasket seal (boss) all ends |
| Connection Type | Flare, Threaded external boss all ends |
| Dimension M | 2 7/64 in |
| Head Angle | 37 º |
| Industry Standards/Certification | AN815 |
| Material | Steel |
| Material Specification | 66 federal standard all material responses |
| NIIN | 00-187-0489 |
| NSN | 4730-00-187-0489 |
| Nominallength | 2.109 |
| Reference E | 1.375 in |
| Size No. Alum | 12D |
| Size No. SS | 12J |
| Size No. Steel | 12 |
| Style Designator | Flared with center wrenching facility |
| Surface Treatment | Cadmium |
| Thread Class | 3a all ends |
| Thread Qty | 12 |
| Thread Qty Per Inch (tpi) | 12 all ends |
| Thread Series | UNJ |
| Thread Series Designator | Unj all ends |
| Thread Size | 1 1/16-12, 1.062 inches all ends |
| Thread Size (Reference) | 1 1/16-12 |
| Tube O.D. | 3/4 |
| Tube Outside Diameter | 3/4 in |
| Weight | 0.34 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for AN815-12. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error