The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-641-1534, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-641-1534 |
| Primary Part Number | 257388 ITEM 26L1 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 257388 ITEM 26L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| FF-S-86 MOD CONFORM TO MS18116L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 256601 ITEM 26L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| FF-S-86,5/8-11UNC-3A-2 1/2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2642-859-01 ITEM 54L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| FF-S-86,5/8-11UNC-3A-2 1/2 | 5/1 Secondary reference U.S. Government activity |
| 257388 ITEM 26 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 256601 ITEM 26 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 2642-859-01 ITEM 54 | 3/1 Design control — primary reference U.S. Government activity |
| 2642-859-01 ITEM 54 | 5/1 Secondary reference U.S. Government activity |
| FF-S-86 MOD CONFORM TO MS18116 | 5/1 Secondary reference U.S. Government activity |
NSN 5305-01-641-1534 is a Screw,cap,socket Head, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-641-1534 has 5 manufacturer part numbers on file: 257388 ITEM 26L1 (Naval Inventory Control Point Mechanicsburg), FF-S-86 MOD CONFORM TO MS18116L1 (Naval Inventory Control Point Mechanicsburg), 256601 ITEM 26L1 (Naval Inventory Control Point Mechanicsburg), FF-S-86,5/8-11UNC-3A-2 1/2L1 (Naval Inventory Control Point Mechanicsburg), 2642-859-01 ITEM 54L1 (Naval Inventory Control Point Mechanicsburg).
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.