The O-Ring, cataloged under National Stock Number 5331-01-491-5621, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Petroleum Analyzer Co L.p. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-491-5621 |
| Primary Part Number | 53706 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Petroleum Analyzer Co L.p |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-01-491-5621 is a O-Ring, manufactured by Petroleum Analyzer Co L.p, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-491-5621 has 2 manufacturer part numbers on file: AL-53706 (European Technology Srl), 53706 (Petroleum Analyzer Co L.p).
Key specifications for 53706: End Item Identification: USED ON ALCOR JET FUEL THERMAL OXIDATION TESTER MODEL 215 LINE CONNECTOR. 0 specifications are 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.