The O-Ring, cataloged under National Stock Number 5331-01-013-0220, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace. Government technical data includes 3 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 | 5331-01-013-0220 |
| Primary Part Number | MC10035 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace |
| Status | ACTIVE |
| Cross-Sectional Height | 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Material | PLASTIC OR RUBBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MC10035 PRIMARY | Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace (USA) |
NSN 5331-01-013-0220 is a O-Ring, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-013-0220 has 1 manufacturer part number on file: MC10035 (Eaton Aerospace Llc Dba Sterer Engineering Div M.c.aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-424-7510. Verify interchangeability with system specifications before substitution.
Key specifications for MC10035: Cross-Sectional Height: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN; Center Hole Diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Material: PLASTIC OR RUBBER. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.