The O-Ring, cataloged under National Stock Number 5331-01-169-2019, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-169-2019 |
| Primary Part Number | S8057AK161 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | EMS 315 MFR REF SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 1.668 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| 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 |
|---|---|
| S8057AK161 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| S8057AK161 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| S8057AK161 | Proponent, Inc. Dba Proponent (USA) |
| S8057AK161 | Parco, Llc (USA) |
NSN 5331-01-169-2019 is a O-Ring, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-169-2019 has 4 manufacturer part numbers on file: S8057AK161 (Parker Hannifin Corporation Div O-Ring Division), S8057AK161 (Honeywell International Inc. Div Aerospace - Torrance), S8057AK161 (Proponent, Inc. Dba Proponent), S8057AK161 (Parco, Llc).
Key specifications for S8057AK161: Temp Rating: -65.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 60.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: EMS 315 MFR REF SINGLE MATERIAL RESPONSE. 6 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.