The O-Ring, cataloged under National Stock Number 5331-01-530-0844, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is R & M Energy Systems Tomball P. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-530-0844 |
| Primary Part Number | 52007550 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | R & M Energy Systems Tomball P |
| Status | ACTIVE |
| Cross-Sectional Height | 0.125 INCHES NOMINAL IN |
| Center Hole Diameter | 2.750 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 52007420 ITEM 5 | R & M Energy Systems Tomball P (USA) |
| 52007550 PRIMARY | R & M Energy Systems Tomball P (USA) |
NSN 5331-01-530-0844 is a O-Ring, manufactured by R & M Energy Systems Tomball P, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-530-0844 has 2 manufacturer part numbers on file: 52007420 ITEM 5 (R & M Energy Systems Tomball P), 52007550 (R & M Energy Systems Tomball P).
Key specifications for 52007550: Cross-Sectional Height: 0.125 INCHES NOMINAL IN; Special Features: OUTSIDE DIAMETER IS 3.625IN; 2.50 IPS; 150 PSI IN; Center Hole Diameter: 2.750 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: SEAL, PACKING FOR A 2.5IN 3BW15P/40/MONEL FCP/VITON IN. 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.