The Seal,plain Encased, cataloged under National Stock Number 5330-01-138-5255, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 — Packing and Gasket Materials (FSG 53) |
| Manufacturers | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (CAGE 09790) |
| Parameter | Value |
|---|---|
| NSN | 5330-01-138-5255 |
| Primary Part Number | 78860 ITEM 10 |
| Item Name | Seal,plain Encased |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 78950 ITEM 10 | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
| 78860 ITEM 10 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
| 78863 | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
NSN 5330-01-138-5255 is a Seal,plain Encased, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-138-5255 has 3 manufacturer part numbers on file: 78950 ITEM 10 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 78860 ITEM 10 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 78863 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-263-7233, 6220-01-560-5693. Verify interchangeability with system specifications before substitution.
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.