The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-555-4634, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Lex Products, Llc. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-555-4634 |
| Primary Part Number | S123B00100 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Lex Products, Llc |
| Status | ACTIVE |
| Fastener Length | 1.000 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | CROSS RECESS TYPE II |
| 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 |
|---|---|
| S123B00100 PRIMARY | Lex Products, Llc (USA) |
| S123B00100 | Hardware Specialty Co. Inc (USA) |
| Reference | Meaning |
|---|---|
| S123B00100 | 5/9 Secondary reference Eastern Fastener Corporation |
NSN 5305-01-555-4634 is a Screw,cap,socket Head, manufactured by Lex Products, Llc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-555-4634 has 2 manufacturer part numbers on file: S123B00100 (Lex Products, Llc), S123B00100 (Hardware Specialty Co. Inc).
Key specifications for S123B00100: Fastener Length: 1.000 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL IN; Head Style: FLAT COUNTERSUNK; Thread Direction: RIGHT-HAND. 6 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.