The Screw,close Tolerance, cataloged under National Stock Number 5305-01-623-9941, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Valley-Todeco, Inc. Dba Arconic Fastening Systems (CAGE 06710); Sequence Support Services Inc (CAGE 0K620); B & B Specialties Inc (CAGE 62206); B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-623-9941 |
| Primary Part Number | C20645-3-18 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| C20645-3-18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| C20645-3-18 | Sequence Support Services Inc (USA) |
| C20645-3-18 | B & B Specialties Inc (USA) |
| GS1009-3-18 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| C20645-3-18 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| C20645-3-18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| C20645-3-18 | 5/2 Secondary reference U.S. Government activity |
| C20645-3-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-623-9941 is a Screw,close Tolerance, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-623-9941 has 6 manufacturer part numbers on file: C20645-3-18 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), C20645-3-18 (Sequence Support Services Inc), C20645-3-18 (B & B Specialties Inc), GS1009-3-18 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), C20645-3-18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
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.