fittings › straight pipe to boss adapters
AN816-4D
AN Fitting AN816-4D Nipple
Description
Adapter
Specifications
| Alternate Part Number | AS5194D0402 |
|---|---|
| Connection Type | Flared |
| Dimension G | 0.500 in |
| Dimension G Tolerance | -0.004 in |
| Dimension M | 1.109 in |
| Dimension M Tolerance | +0.016 in |
| Head Angle | 37 º |
| Industry Standards/Certification | AN816 |
| Material | Aluminum |
| NIIN | 00-240-5905 |
| NSN | 4730-00-240-5905 |
| Size No. Alum | 4D |
| Size No. SS | 4J |
| Size No. Steel | 4 |
| Thread P (AMPT) | 0.125 |
| Thread P (AMPT) Tolerance | +0.016 |
| Thread Size | 1/8 |
| Thread T (Reference) | 0.4375-20 |
| Tube O.D. | 1/4 |
| Tube Outside Diameter | 1/4 in |
| Weight | .005 lb |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for AN816-4D — functionally equivalent.
- AS5194D0402 Listed alternate
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error