// TECHNICAL RESOURCES
Mil-Spec specification cross-reference.
Check the individual document, its status and its stated successor. Keep that finding separate from a complete part-number conversion.
// DOCUMENT REFERENCES
Official document status and successors
These rows identify document status and named successors. A successor document does not by itself establish an approved part substitution. Active entries are included to help resolve assumptions about MS-to-NASM changes.
Records checked October 17, 2026.
No matching entries. Clear the filters or try a shorter search.
| Reference | Status / named successor | Hardware family |
|---|---|---|
| MS24693 | Canceled; see NASM24693 | 100° flat cross-recessed machine screws |
| MS35206 | Canceled; see NASM35206 | Pan head cross-recessed machine screws, carbon steel, UNC |
| MS51957 | Active; no successor asserted | Pan head cross-recessed machine screws, corrosion-resistant steel, UNC |
| MS51959 | Canceled; see NASM51959 | 82° flat cross-recessed machine screws, corrosion-resistant steel, UNC |
| MS16995 | Canceled; see NASM16995 | Socket head cap screws, corrosion-resistant steel, UNC |
| MS16997 | Canceled; see NAS1352 | Socket head cap screws, alloy steel, UNC |
| AN960 | Canceled; see NAS1149 | Flat washers |
| MS51576 | Canceled; see NASM51576 | Socket-head shoulder screws |
| MS16555 | Canceled; see NASM16555 | Dowel pins, .0002 over nominal |
| MS16556 | Canceled; see NASM16556 | Dowel pins, .001 over nominal |
| MS20392 | Canceled; see NASM20392 | Headed pins, drilled shank |
| MS24665 | Canceled; see NASM24665 | Split cotter pins |
| MS35307 | Canceled; see NASM35307 | Corrosion-resistant hex cap screws, UNC |
| MS35308 | Canceled; see NASM35308 | Corrosion-resistant hex cap screws, UNF |
| MS90725 | Canceled; see NASM90725 | Grade 5 hex cap screws, UNC |
| MS90727 | Canceled; see ANSI-B18.2.1 | Alloy steel hex cap screws, UNF |
| MS20426 | Canceled; see NASM20426 | 100-degree countersunk solid rivets |
| MS21042 | Canceled; see NASM21042 | Reduced-height self-locking nuts |
| MS35751 | Canceled; see NASM35751 | Carriage bolts |
| MS51830 | Active; no successor asserted | Miniature and lightweight keylocking inserts |
| MS51831 | Active; no successor asserted | Heavy-duty keylocking inserts |
| MS51832 | Active; no successor asserted | Extra-heavy-duty keylocking inserts |
| AN470 | Canceled; see MS20470 | Universal-head aluminum rivets |
// IMPORTANT DISTINCTION
A changed standard name can leave the part number unchanged
MS20426 moved to the successor document NASM20426 with part identification numbers unchanged. This is why simply replacing the MS prefix with NASM can create an incorrect ordering number.
// HOW TO INTERPRET A RESULT
Document relationship, mapped part or candidate alternate?
| Item | Reference |
|---|---|
| Document succession | An official record names the replacement standard. |
| Full part-number mapping | A complete-designation mapping must be reviewed with its applicable notes. |
| Candidate alternate | A possible substitute still requires the applicable engineering and quality review. |
Every relationship in the table above is a document-level finding. It is not a list of commercial interchangeables.
// SOURCE WITH WEBSON
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