The Retainer,special, cataloged under National Stock Number 5342-01-021-8643, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Tactair Fluid Controls Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5342-01-021-8643 |
| Primary Part Number | HP973405-1 |
| Item Name | Retainer,special |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Tactair Fluid Controls Inc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-225/6 ALLOY 2024 TEMPER T4,ANODIZE MIL-A-8625 |
| 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 |
|---|---|
| HP973405-1 PRIMARY | Tactair Fluid Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| HP973405-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5342-01-021-8643 is a Retainer,special, manufactured by Tactair Fluid Controls Inc, classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-01-021-8643 has 1 manufacturer part number on file: HP973405-1 (Tactair Fluid Controls Inc).
Key specifications for HP973405-1: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-225/6 ALLOY 2024 TEMPER T4,ANODIZE MIL-A-8625; End Item Identification: CH-46E AIRCRAFT. 1 specification is 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.