The O-Ring, cataloged under National Stock Number 5331-01-648-9957, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Ritter Technology, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5331-01-648-9957 |
| Primary Part Number | 0100240088 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Ritter Technology, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.147 INCHES NOMINAL IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 21.180 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 |
|---|---|
| 0100240088 | Ritter Technology, Llc (USA) |
| Reference | Meaning |
|---|---|
| SKD168962 ITEM 88 | 5/2 Secondary reference U.S. Government activity |
| 0100240088 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-648-9957 is a O-Ring, manufactured by Ritter Technology, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-648-9957 has 1 manufacturer part number on file: 0100240088 (Ritter Technology, Llc).
Key specifications for 0100240088: Cross-Sectional Height: 0.147 INCHES NOMINAL IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 21.180 INCHES NOMINAL IN; End Item Identification: ACTUATOR, PLATFORM LOCK. 4 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.