The Nut,plain,clinch, cataloged under National Stock Number 5310-01-263-3837, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Penn Engineering & Manufacturing Corp. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-263-3837 |
| Primary Part Number | S-M3-2ZI |
| Item Name | Nut,plain,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Penn Engineering & Manufacturing Corp |
| Status | ACTIVE |
| Thread Tolerance Class | 6H INTERNAL |
| Thread Series | ISO M |
| Thread Pitch in Millimeters | 0.50 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 3.0 MILLIMETERS MM |
| Nut Diameter | 6.15 MILLIMETERS MINIMUM AND 6.35 MILLIMETERS MAXIMUM MM |
| Pilot Diameter | 4.22 MILLIMETERS MAXIMUM MM |
| Pilot Length | 1.37 MILLIMETERS MAXIMUM MM |
| Nut Height | 2.87 MILLIMETERS NOMINAL MM |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | CLINCH |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S-M3-2ZI PRIMARY | Penn Engineering & Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| S-M3-2 | 5/9 Secondary reference Penn Engineering & Manufacturing Corp |
| 2007 | 5/9 Secondary reference Genicom Corp |
NSN 5310-01-263-3837 is a Nut,plain,clinch, manufactured by Penn Engineering & Manufacturing Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-263-3837 has 1 manufacturer part number on file: S-M3-2ZI (Penn Engineering & Manufacturing Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-308-1719, 5120-01-348-9122. Verify interchangeability with system specifications before substitution.
Key specifications for S-M3-2ZI: Thread Tolerance Class: 6H INTERNAL; Thread Series: ISO M; Thread Pitch in Millimeters: 0.50; Thread Direction: RIGHT-HAND. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.