The O-Ring, cataloged under National Stock Number 5331-01-616-6535, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Akron Brass Company. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); Akron Brass Company (CAGE 00912) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-616-6535 |
| Primary Part Number | 757458 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Akron Brass Company |
| Status | ACTIVE |
| 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 |
|---|---|
| ORM0500-08700 NBR-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 757458 PRIMARY | Akron Brass Company (USA) |
| D44557 FIND 4 PRIMARY | Akron Brass Company (USA) |
NSN 5331-01-616-6535 is a O-Ring, manufactured by Akron Brass Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-616-6535 has 3 manufacturer part numbers on file: ORM0500-08700 NBR-70 (Parker-Hannifin Corp Div O-Ring Division), 757458 (Akron Brass Company), D44557 FIND 4 (Akron Brass Company).
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.