fittings › boss nipples
MS21902D4
Military Standard Boss Nipple
Description
Union
Specifications
| Alternate Part Number | MS21902W4 |
|---|---|
| NIIN | 00-142-2155 |
| NSN | 4730-00-142-2155 |
| Weight | 0.015 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 MS21902D4 — functionally equivalent.
- MS21902W4 Listed alternate 7/16 in · Aluminum
Looking for a specific part? Use the cross-reference lookup.
Catalog data updated 2026-07-05. Report a data error