The O-Ring, cataloged under National Stock Number 5331-00-405-5083, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-405-5083 |
| Primary Part Number | 3902483 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Cross-Sectional Height | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.532 INCHES MINIMUM AND 4.592 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 |
|---|---|
| 3902483 | Lockheed Martin Services, Llc (USA) |
| 3902483 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 3902483 | C/1 Advisory reference — outside the item-of-supply concept International Business Machines Corporation Dba IBM |
NSN 5331-00-405-5083 is a O-Ring, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-405-5083 has 2 manufacturer part numbers on file: 3902483 (Lockheed Martin Services, Llc), 3902483 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 3902483: Cross-Sectional Height: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Center Hole Diameter: 4.532 INCHES MINIMUM AND 4.592 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.