The O-Ring, cataloged under National Stock Number 5331-00-790-6324, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-00-790-6324 |
| Primary Part Number | 5X-522 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.140 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 5X-522 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 780-02217 | 5/9 Secondary reference Ansul Fire Protection |
| H10122 | 5/9 Secondary reference Tyco Fire Products Lp |
| 780-02217 | 5/9 Secondary reference Tyco Fire Products Lp |
NSN 5331-00-790-6324 is a O-Ring, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-790-6324 has 1 manufacturer part number on file: 5X-522 (Meritor Heavy Vehicle Systems, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5320-01-020-8879, 5310-01-445-3810. Verify interchangeability with system specifications before substitution.
Key specifications for 5X-522: Cross-Sectional Height: 0.140 INCHES NOMINAL IN; End Item Identification: HEAVY EQUIPMENT TRUCK TRACTOR, M1070; 2330-01-303-8832 M1000 CHETTL TRAILER; Material: RUBBER SYNTHETIC. 2 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.