The O-Ring, cataloged under National Stock Number 5331-01-183-3154, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kirby Morgan Dive Systems Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Jfd Ltd (CAGE U9992); Kirby Morgan Dive Systems Inc (CAGE 58366); Honeywell Aerospace Yeovil Div Aerospace -Yeovil (CAGE U1605) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-183-3154 |
| Primary Part Number | 520-029 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kirby Morgan Dive Systems Inc |
| 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 |
|---|---|
| DE041 | Jfd Ltd (GBR) |
| 520-029 PRIMARY | Kirby Morgan Dive Systems Inc (USA) |
| 9147Y038 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| Reference | Meaning |
|---|---|
| DP5518 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
| 18-81B | 5/9 Secondary reference Kirby Morgan Dive Systems Inc |
| DP5518 | 5/9 Secondary reference Ministry of Defence, De&s Underwater and Electronic Warfare Pt (uew Ipt) |
NSN 5331-01-183-3154 is a O-Ring, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-183-3154 has 3 manufacturer part numbers on file: DE041 (Jfd Ltd), 520-029 (Kirby Morgan Dive Systems Inc), 9147Y038 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-192-4430, 5330-01-362-9318. 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.