The O-Ring, cataloged under National Stock Number 5331-01-543-5768, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Roehlen Industries Procon Products Div. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-543-5768 |
| Primary Part Number | 3188-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Roehlen Industries Procon Products Div |
| Status | ACTIVE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6395186-02 FIND 004 | Naval Sea Systems Command (USA) |
| 3188-1 PRIMARY | Roehlen Industries Procon Products Div (USA) |
| 6395186-03 FIND 004 | Naval Sea Systems Command (USA) |
NSN 5331-01-543-5768 is a O-Ring, manufactured by Roehlen Industries Procon Products Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-543-5768 has 3 manufacturer part numbers on file: 6395186-02 FIND 004 (Naval Sea Systems Command), 3188-1 (Roehlen Industries Procon Products Div), 6395186-03 FIND 004 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-604-1769. Verify interchangeability with system specifications before substitution.
Key specifications for 3188-1: Part Name Assigned by Controlling Agency: PARKER 336 O-RING; End Item Identification: CIRCULATING PUMP, ENVIRONMENTAL CONTROL SYSTEM; Material: RUBBER FLUOROCARBON CLASS FPM. 1 specification is documented in the U.S. Government catalog.
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.