The O-Ring, cataloged under National Stock Number 5331-01-276-4678, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc. Government technical data includes 2 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 | 5331-01-276-4678 |
| Primary Part Number | PT121-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.312 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| PT121-1 PRIMARY | Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc (USA) |
NSN 5331-01-276-4678 is a O-Ring, manufactured by Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-276-4678 has 1 manufacturer part number on file: PT121-1 (Kahlenberg Industries, Inc. Dba Kahlenberg Industries Inc).
Key specifications for PT121-1: Cross-Sectional Height: 0.312 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR. 2 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.