The O-Ring, cataloged under National Stock Number 5331-01-422-3187, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Louis Allis. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-422-3187 |
| Primary Part Number | 16P00164-0030 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Louis Allis |
| Status | ACTIVE |
| Material Document and Classification | MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 16P00164-0030 PRIMARY | Louis Allis (USA) |
| Reference | Meaning |
|---|---|
| 16P00164-0030 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 16P00164-0030 | 5/9 Secondary reference Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies |
| 15A00355-0000 ITEM 12 | 5/9 Secondary reference Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies |
NSN 5331-01-422-3187 is a O-Ring, manufactured by Louis Allis, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-422-3187 has 1 manufacturer part number on file: 16P00164-0030 (Louis Allis).
Key specifications for 16P00164-0030: Material Document and Classification: MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.