The O-Ring, cataloged under National Stock Number 5331-01-278-5037, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (CAGE 60532); Industrial Heat Transfer, Inc. Dba Industrial Heat Transfer Inc (CAGE 0ASU6) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-278-5037 |
| Primary Part Number | C2817-5725-06 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| C2817-5725-06 PRIMARY | Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters (USA) |
| 2817-5725-06 | Industrial Heat Transfer, Inc. Dba Industrial Heat Transfer Inc (USA) |
| Reference | Meaning |
|---|---|
| E2817-5700-24 | 5/9 Secondary reference Industrial Heat Transfer, Inc. Dba Industrial Heat Transfer Inc |
| C2817-5725-06 | 5/9 Secondary reference Industrial Heat Transfer, Inc. Dba Industrial Heat Transfer Inc |
| C2817-5725-06 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2817-5725-06 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-278-5037 is a O-Ring, manufactured by Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-278-5037 has 2 manufacturer part numbers on file: C2817-5725-06 (Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters), 2817-5725-06 (Industrial Heat Transfer, Inc. Dba Industrial Heat Transfer Inc).
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.