The O-Ring, cataloged under National Stock Number 5331-01-581-8266, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Babington Technology, Incorporated. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-581-8266 |
| Primary Part Number | 9263K135 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Babington Technology, Incorporated |
| Status | ACTIVE |
| Cross-Sectional Height | 1.6 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 0.9 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 9263K135 PRIMARY | Babington Technology, Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 5-13-7746-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| 5-13-7746 | D/9 Drawing number reference only U.S. Government activity |
NSN 5331-01-581-8266 is a O-Ring, manufactured by Babington Technology, Incorporated, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-581-8266 has 1 manufacturer part number on file: 9263K135 (Babington Technology, Incorporated).
Key specifications for 9263K135: Cross-Sectional Height: 1.6 MILLIMETERS NOMINAL MM; Special Features: OD 4.1 NOMINAL MILLIMETERS; Center Hole Diameter: 0.9 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: O-RING, FLOW CONTROL MODULE INSERT. 2 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.