The O-Ring, cataloged under National Stock Number 5331-01-115-8109, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sargent Aerospace a Dover Diversified Co. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (CAGE 78062); Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (CAGE 59364); Sargent Aerospace a Dover Diversified Co (CAGE 0FEV5) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-115-8109 |
| Primary Part Number | 3187158-020 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sargent Aerospace a Dover Diversified Co |
| 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 |
|---|---|
| 3187158-020 | Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA) |
| 3187158-020 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 3187158-020 PRIMARY | Sargent Aerospace a Dover Diversified Co (USA) |
| Reference | Meaning |
|---|---|
| 3187158-020 | 5/9 Secondary reference Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div |
| 3187158-020 | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
NSN 5331-01-115-8109 is a O-Ring, manufactured by Sargent Aerospace a Dover Diversified Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-115-8109 has 3 manufacturer part numbers on file: 3187158-020 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 3187158-020 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 3187158-020 (Sargent Aerospace a Dover Diversified Co).
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.