The Fairlead,tubular, cataloged under National Stock Number 5342-01-683-0658, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Glenair, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Fairlead,tubular |
| FSC / FSG | 5342 — Hardware, Weapon System (FSG 53) |
| Manufacturers | Glenair, Inc. (CAGE 06324) |
| Parameter | Value |
|---|---|
| NSN | 5342-01-683-0658 |
| Primary Part Number | 637-223B4B |
| Item Name | Fairlead,tubular |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Glenair, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 637-223B4B PRIMARY | Glenair, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 637-223 | D/9 Drawing number reference only Glenair, Inc. |
NSN 5342-01-683-0658 is a Fairlead,tubular, manufactured by Glenair, Inc., classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-683-0658 has 1 manufacturer part number on file: 637-223B4B (Glenair, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5342-01-683-0679. 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.
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.