The O-Ring, cataloged under National Stock Number 5331-00-903-6711, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ametek Inc Heat Transfer Div. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-903-6711 |
| Primary Part Number | 6-1-1953-36-22A |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ametek Inc Heat Transfer Div |
| Status | ACTIVE |
| Cross-Sectional Height | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Center Hole Diameter | 7.240 INCHES MINIMUM AND 7.260 INCHES MAXIMUM 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 |
|---|---|
| 6-1-1953-36-22A PRIMARY | Ametek Inc Heat Transfer Div (USA) |
| Reference | Meaning |
|---|---|
| 6-1-1953-36-22A | 5/9 Secondary reference U.S. Government activity |
| 6-1-1953-36-22 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-00-903-6711 is a O-Ring, manufactured by Ametek Inc Heat Transfer Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-903-6711 has 1 manufacturer part number on file: 6-1-1953-36-22A (Ametek Inc Heat Transfer Div).
Key specifications for 6-1-1953-36-22A: Cross-Sectional Height: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Center Hole Diameter: 7.240 INCHES MINIMUM AND 7.260 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 3 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.