The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-653-2220, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc (CAGE 3W544) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-653-2220 |
| Primary Part Number | LMP391A6 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LMP391A6 PRIMARY | Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc (USA) |
| Reference | Meaning |
|---|---|
| LMP391A | D/9 Drawing number reference only Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc |
NSN 5305-01-653-2220 is a Screw,cap,socket Head, manufactured by Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-653-2220 has 1 manufacturer part number on file: LMP391A6 (Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc).
3 possible matches (shared part number, not a government interchangeability claim): 3120-01-653-2254, 5315-01-653-2290, 1010-01-661-9881. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5305-01-653-2220 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.