The Seal Ring,metal, cataloged under National Stock Number 5330-01-214-0020, 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. Government technical data includes 7 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 | 5330-01-214-0020 |
| Primary Part Number | 78851 |
| Item Name | Seal Ring,metal |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator |
| Status | ACTIVE |
| Material Document and Classification | QQ-N-288 COMP D FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | DOUBLE INSIDE BEVEL, STRAIGHT FACE |
| Outside Diameter | 4.5000 INCHES NOMINAL IN |
| Joint Style | STEP JOINT |
| Radial Wall Thickness | 0.1430 INCHES NOMINAL IN |
| Ring Style | EXPANDING CONCENTRIC |
| Material | NICKEL ALLOY OVERALL |
| 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 |
|---|---|
| 78851 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
NSN 5330-01-214-0020 is a Seal Ring,metal, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-214-0020 has 1 manufacturer part number on file: 78851 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator).
1 possible match (shared part number, not a government interchangeability claim): 5960-01-613-6105. Verify interchangeability with system specifications before substitution.
Key specifications for 78851: Overall Width: 0.1230 INCHES MINIMUM AND 0.1240 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-288 COMP D FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: DOUBLE INSIDE BEVEL, STRAIGHT FACE; Outside Diameter: 4.5000 INCHES NOMINAL IN. 7 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.