MS21083N4: AN364-428, MS20364-428, MS20364-428A

MS21083N4

What it is: Hexagon self-locking nut, MS part number
Equivalents: AN364-428ANCatalog onlySame NSN 5310-00-903-8282 (government catalog). Not a maker's approval: confirm on the drawing.
MS20364-428MSCatalog onlySame NSN 5310-00-903-8282 (government catalog). Not a maker's approval: confirm on the drawing.
MS20364-428AMSCatalog onlySame NSN 5310-00-903-8282 (government catalog). Not a maker's approval: confirm on the drawing.
NAS1022N4NASCatalog onlySame NSN 5310-00-903-8282 (government catalog). Not a maker's approval: confirm on the drawing.
+9 more reference numbers in the detail below.
Install tooling, by who made the part: Not documented for this part number. Ask a tooling specialist →

Qty

Reference only: the drawing and its process spec govern. How to read this

Full detail: decode, cited documents, every stock number

Dash numbers not decoded: SpecLok has no structured decoder for this series. Read them from the controlling spec.

Install tooling, by who made the partNot documented for this part number.

Qty

Identical or approved-alternate part numbers, each with the document that states it.

No sourced equivalent on file for MS21083. SpecLok only lists an equivalent when a manufacturer or government document states it.

Possible NASM form, to verify: MS21083 / NASM21083. If a conversion exists, NASM is the converted form of the MS standard with an identical part number (e.g. MS90353U Notice 1). Not every MS has a NASM successor: verify the NASM document exists; the part may still be stocked as MS. MS90353U Notice 1: canceled and superseded by NASM90353, part numbers identical (everyspec) ↗