The O-Ring, cataloged under National Stock Number 5331-01-363-4122, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Boll Filter Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Boll Filter Corporation (CAGE 3EXK7) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-363-4122 |
| Primary Part Number | 3134290 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Boll Filter Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 3134290 PRIMARY | Boll Filter Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1-20719 POS/F 43 | 5/9 Secondary reference Boll & Kirch Filterbau Gmbh |
NSN 5331-01-363-4122 is a O-Ring, manufactured by Boll Filter Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-363-4122 has 1 manufacturer part number on file: 3134290 (Boll Filter Corporation).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-602-8147. Verify interchangeability with system specifications before substitution.
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.