The O-Ring, cataloged under National Stock Number 5331-01-650-4781, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sheldon Manufacturing, Inc. Dba Sheldon Manufacturing Inc. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-650-4781 |
| Primary Part Number | 6000504 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sheldon Manufacturing, Inc. Dba Sheldon Manufacturing Inc |
| Status | ACTIVE |
| Special Test Features | TESTED AT AMBIENT TEMPERATURE 25 DEGREES CELCIUS AND LINE VOLTAGES WITH IN PLUS/MINUS 10 PERCENT OF UNIT TYPE |
| Outside Diameter | 4.00 INCHES NOMINAL IN |
| Material | PLASTIC SILICONE |
| 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 |
|---|---|
| 6000504 PRIMARY | Sheldon Manufacturing, Inc. Dba Sheldon Manufacturing Inc (USA) |
NSN 5331-01-650-4781 is a O-Ring, manufactured by Sheldon Manufacturing, Inc. Dba Sheldon Manufacturing Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-650-4781 has 1 manufacturer part number on file: 6000504 (Sheldon Manufacturing, Inc. Dba Sheldon Manufacturing Inc).
Key specifications for 6000504: Special Test Features: TESTED AT AMBIENT TEMPERATURE 25 DEGREES CELCIUS AND LINE VOLTAGES WITH IN PLUS/MINUS 10 PERCENT OF UNIT TYPE; Outside Diameter: 4.00 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: BACTRON CUFF O-RING; End Item Identification: COMPATIBLE WITH BACTRON I, BACTRON I-2; BACTRON II;BACTRON 11-2; BACTRON III; BACTRON III-2; BACTRON IV; BACTRON IV-2; BACTRON X; BACTRON X-2. 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.