The O-Ring, cataloged under National Stock Number 5331-01-341-9362, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Yuken Kogyo Co Ltd. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Yuken Kogyo Co Ltd (CAGE J4548); Safran Landing Systems Ex Messier Dowty (CAGE F0189); Messier-Dowty Incdba Safran Electronics Canada Inc (CAGE 3AD18) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-341-9362 |
| Primary Part Number | SO-NB-P28 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Yuken Kogyo Co Ltd |
| 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 |
|---|---|
| SO-NB-P28 | Yuken Kogyo Co Ltd (JPN) |
| OBP-28-90 | Safran Landing Systems Ex Messier Dowty (FRA) |
| OBP-28-90 | Messier-Dowty Incdba Safran Electronics Canada Inc (CAN) |
| Reference | Meaning |
|---|---|
| OBP-18-90 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| OBP-9-90 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| OBP-28-90 | 3/9 Design control — primary reference Safran Landing Systems Canada Inc. |
NSN 5331-01-341-9362 is a O-Ring, manufactured by Yuken Kogyo Co Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-341-9362 has 3 manufacturer part numbers on file: SO-NB-P28 (Yuken Kogyo Co Ltd), OBP-28-90 (Safran Landing Systems Ex Messier Dowty), OBP-28-90 (Messier-Dowty Incdba Safran Electronics Canada Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-342-5424, 5331-01-342-5425. 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.