The Packing Assortment,preformed, cataloged under National Stock Number 5330-01-166-5428, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Jay-Em Aerospace Corporation. Government technical data includes 2 specifications, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-166-5428 |
| Primary Part Number | PK665 |
| Item Name | Packing Assortment,preformed |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Jay-Em Aerospace Corporation |
| Status | ACTIVE |
| Component Quantity | 5 |
| Nonsupply Items and Quantities | 04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PK665 PRIMARY | Jay-Em Aerospace Corporation (USA) |
NSN 5330-01-166-5428 is a Packing Assortment,preformed, manufactured by Jay-Em Aerospace Corporation, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-166-5428 has 1 manufacturer part number on file: PK665 (Jay-Em Aerospace Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-223-7069. Verify interchangeability with system specifications before substitution.
Key specifications for PK665: Component Quantity: 5; Nonsupply Items and Quantities: 04720 27938 O RING 1,04720 27939 BACK-UP RING 1,04720 27940 O RING 1,04720 27941 BACK-UP RING 1,04720 28407 O RING 1. 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.