The Retainer,seal,sensor Subassembly, cataloged under National Stock Number 1630-01-221-7543, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-01-221-7543 |
| Item Name | Retainer,seal,sensor Subassembly |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT BRAKE SYSTEM |
| General Characteristics Item Description | CONSISTS OF GRADE T PRIMER,AS REQUIRED;40 RING CMPD;AS REQUIRED;1 EB48-36-2C SEAL;1 EB48-36-2AC SEAL,SHAFT-TROSTEL;1 RETAINER;RETAINER MATERIAL IS 2024-T4 ALUMINUM ALLOY PER QQ-A-225/6 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 040-829-1025-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-01-221-7543 is a Retainer,seal,sensor Subassembly, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
Key specifications for 1630-01-221-7543: FSC Application Data: AIRCRAFT BRAKE SYSTEM; General Characteristics Item Description: CONSISTS OF GRADE T PRIMER,AS REQUIRED;40 RING CMPD;AS REQUIRED;1 EB48-36-2C SEAL;1 EB48-36-2AC SEAL,SHAFT-TROSTEL;1 RETAINER;RETAINER MATERIAL IS 2024-T4 ALUMINUM ALLOY PER QQ-A-225/6. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.