fittings › straight pipe to boss adapters
AN816-4
Adapter
Description
Adapter
Specifications
| Alternate Part Number | AS5194-0402 |
|---|---|
| Connection Style | Flared (tube) 1st end, Plain (pipe) 2nd end |
| Connection Type | Flared, Threaded external pipe 2nd end, Threaded external tube 1st end |
| Dimension G | 0.500 in |
| Dimension G Tolerance | -0.004 in |
| Dimension M | 1.109 in |
| Dimension M Tolerance | +0.016 in |
| End Application | Air launc (coarse thread)h cruise (alcm) agm-86b 36f missile |
| Head Angle | 37 º |
| Industry Standards/Certification | AN816 |
| Material | Steel |
| Maximum Operating Pressure | 3000.0 pounds per square inch single response |
| Maximum Operating Temp | 400.0 degrees fahrenheit single response |
| NIIN | 00-187-0840 |
| NSN | 4730-00-187-0840 |
| Nominallength | 1.220 |
| Nondefinitive Specification/Std Data | 2a figure |
| Outside Diameter Tube Accommodated | 0.250 inches 1st end |
| Seat Angle | 37.0 degrees 1st end |
| Size No. Alum | 4D |
| Size No. SS | 4J |
| Size No. Steel | 4 |
| Specification Data | 81343-as4842/1 professional/industrial association standard and 88044-an816 government standard and 81343-j514 professional/industrial association standard |
| Surface Treatment Specification | J514 assn standard single treatment response |
| Thread Class | 2a 1st end |
| Thread P (AMPT) | 0.125 |
| Thread P (AMPT) Tolerance | +0.016 |
| Thread Series Designator | Anpt 2nd end, Unjf (fine thread with external controlled root radius) 1st end |
| Thread Size | 0.125 inches 2nd end, 0.438 inches 1st end, 1/8 |
| Thread T (Reference) | 0.4375-20 |
| Tube O.D. | 1/4 |
| Tube Outside Diameter | 1/4 in |
| Weight | 0.035 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 AN816-4 — functionally equivalent.
- AS5194-0402 Listed alternate #5 · Steel
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Catalog data updated 2026-07-05. Report a data error