The O-Ring, cataloged under National Stock Number 5331-01-523-4052, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is R R Transmissions Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-523-4052 |
| Primary Part Number | 154B1039 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | R R Transmissions Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 6.447 INCHES MINIMUM AND 6.527 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE NITRILE |
| 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 |
|---|---|
| 0966-1.XLS POS NO.4 | R R Transmissions Inc (USA) |
| EX-966-1 POS NO.4 | R R Transmissions Inc (USA) |
| 154B1039 PRIMARY | R R Transmissions Inc (USA) |
| Reference | Meaning |
|---|---|
| C140070 | 5/9 Secondary reference R R Transmissions Inc |
NSN 5331-01-523-4052 is a O-Ring, manufactured by R R Transmissions Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-523-4052 has 3 manufacturer part numbers on file: 0966-1.XLS POS NO.4 (R R Transmissions Inc), EX-966-1 POS NO.4 (R R Transmissions Inc), 154B1039 (R R Transmissions Inc).
Key specifications for 154B1039: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 6.447 INCHES MINIMUM AND 6.527 INCHES MAXIMUM IN; End Item Identification: PLANETARY REDUCTION GEARBOX MODEL RR 1010 TM W/EL INPUT; Material: RUBBER BUTADIENE NITRILE. 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.