The Seal Assembly Prima, cataloged under National Stock Number 5330-01-478-1522, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-478-1522 |
| Primary Part Number | TF888L220-548C |
| Item Name | Seal Assembly Prima |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| TF888L220-548C PRIMARY | Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo (USA) |
| 74B430716-101 | Safran Landing Systems Canada Inc. (CAN) |
| Reference | Meaning |
|---|---|
| TF888L220-548C | C/1 Advisory reference — outside the item-of-supply concept Trelleborg Sealing Solutions Us, Inc. Dba Trelleborg Sealing Solutions Us, Inc |
| 74B430716-101 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5330-01-478-1522 is a Seal Assembly Prima, manufactured by Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-478-1522 has 2 manufacturer part numbers on file: TF888L220-548C (Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo), 74B430716-101 (Safran Landing Systems Canada Inc.).
Key specifications for TF888L220-548C: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: SEAL ASSEMBLY-PRIMARY; End Item Identification: F18(E/F)FIGHTER AIRCRAFT-FIRST. 1 specification is 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.