The O-Ring, cataloged under National Stock Number 5331-00-576-9420, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Troy Inc. 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. 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 | 5331-00-576-9420 |
| Primary Part Number | 2740137 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Meggitt Troy Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.059 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.495 INCHES MINIMUM AND 0.500 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 |
|---|---|
| 2740137 PRIMARY | Meggitt Troy Inc (USA) |
NSN 5331-00-576-9420 is a O-Ring, manufactured by Meggitt Troy Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-576-9420 has 1 manufacturer part number on file: 2740137 (Meggitt Troy Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-541-3854. Verify interchangeability with system specifications before substitution.
Key specifications for 2740137: Cross-Sectional Height: 0.059 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Center Hole Diameter: 0.495 INCHES MINIMUM AND 0.500 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.