The O-Ring, cataloged under National Stock Number 5331-01-528-5893, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Richards Industries Valve Group Birkett/richards Div. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-528-5893 |
| Primary Part Number | 23-10612-603 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Richards Industries Valve Group Birkett/richards Div |
| Status | ACTIVE |
| 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 |
|---|---|
| 23-10612-603 PRIMARY | Richards Industries Valve Group Birkett/richards Div (USA) |
NSN 5331-01-528-5893 is a O-Ring, manufactured by Richards Industries Valve Group Birkett/richards Div, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-528-5893 has 1 manufacturer part number on file: 23-10612-603 (Richards Industries Valve Group Birkett/richards Div).
Key specifications for 23-10612-603: Special Features: ITEM IS FOR 10,000 (10K) OR 3000 (3K) SERIES BALL VALVE, 0.25/0.75 INCH VALVE IN; Part Name Assigned by Controlling Agency: STEM O-RING; End Item Identification: 10K SERIES (OR ALTERNATELY, A 3K SERIES) BALL VALVE; LPD 17 CLASS SHIP; Material: RUBBER FLUOROCARBON CLASS FPM. 1 specification is 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.