The O-Ring, cataloged under National Stock Number 5331-01-576-4385, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Triumph Thermal Systems - Maryland, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-576-4385 |
| Primary Part Number | SS3815-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Triumph Thermal Systems - Maryland, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SS3815-2 PRIMARY | Triumph Thermal Systems - Maryland, Inc. (USA) |
| Reference | Meaning |
|---|---|
| SS3815-2 | C/1 Advisory reference — outside the item-of-supply concept Defense & Development Enterprises Llc |
NSN 5331-01-576-4385 is a O-Ring, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-576-4385 has 1 manufacturer part number on file: SS3815-2 (Triumph Thermal Systems - Maryland, Inc.).
Key specifications for SS3815-2: Special Features: PER T.O. 9P11-2-4 FIG 8 IND 4; Part Name Assigned by Controlling Agency: PACKING,PREFORMED; End Item Identification: C-130 AIRCRAFT. 0 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.
NSN 5331-01-576-4385 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.