The O-Ring, cataloged under National Stock Number 5331-01-548-4258, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Vedovell R J Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-548-4258 |
| Primary Part Number | 27520-053 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Vedovell R J Inc |
| Status | ACTIVE |
| Material Document and Classification | MIL-R-25988/1-258,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| 27520-053 PRIMARY | Vedovell R J Inc (USA) |
| Reference | Meaning |
|---|---|
| 10392985 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-548-4258 is a O-Ring, manufactured by Vedovell R J Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-548-4258 has 1 manufacturer part number on file: 27520-053 (Vedovell R J Inc).
Key specifications for 27520-053: Material Document and Classification: MIL-R-25988/1-258,CLASS 1,GRADE 70 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: RUBBER,FLUOROSILICON, OIL AND FUEL RESISTANT,CLASS 1,GRADE 70; Part Name Assigned by Controlling Agency: O-RING; End Item Identification: C-5 AIRCRAFT. 1 specification is 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.