The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-197-6818, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Long-Lok Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-197-6818 |
| Primary Part Number | LL54D12S3 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Long-Lok Llc |
| Status | ACTIVE |
| Fastener Length | 0.188 INCHES NOMINAL IN |
| Thread Length | 0.188 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP THREADS |
| Thread Class | 2A A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| LL54D12S3 PRIMARY | Long-Lok Llc (USA) |
| Reference | Meaning |
|---|---|
| 10113524 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5305-01-197-6818 is a Screw,cap,socket Head, manufactured by Long-Lok Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-197-6818 has 1 manufacturer part number on file: LL54D12S3 (Long-Lok Llc).
Key specifications for LL54D12S3: Fastener Length: 0.188 INCHES NOMINAL IN; Thread Length: 0.188 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.073 INCHES IN; Head Style: PAN. 9 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.