The O-Ring, cataloged under National Stock Number 5331-01-173-0873, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Geislinger 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Geislinger Corporation (CAGE 1WTJ3) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-173-0873 |
| Primary Part Number | NOR018306 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Geislinger 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 |
|---|---|
| NOR018306 PRIMARY | Geislinger Corporation (USA) |
| Reference | Meaning |
|---|---|
| 306936 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-173-0873 is a O-Ring, manufactured by Geislinger Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-173-0873 has 1 manufacturer part number on file: NOR018306 (Geislinger Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-284-6079. 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.