The O-Ring, cataloged under National Stock Number 5331-01-481-3948, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is DC Fabricators Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-481-3948 |
| Primary Part Number | CW-686ATS |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | DC Fabricators Inc |
| Status | ACTIVE |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MIL-R-83248,TY II,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| CW-2300DFPN23-621 | DC Fabricators Inc (USA) |
| CW-686ATS PRIMARY | DC Fabricators Inc (USA) |
NSN 5331-01-481-3948 is a O-Ring, manufactured by DC Fabricators Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-481-3948 has 2 manufacturer part numbers on file: CW-2300DFPN23-621 (DC Fabricators Inc), CW-686ATS (DC Fabricators Inc).
Key specifications for CW-686ATS: Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: MIL-R-83248,TY II,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: 2 PIECE MOLDED RUBBER SEAL ASSEMBLY WITH SCARF CUT PARTITIONING ELEMENT; Part Name Assigned by Controlling Agency: SEAL(O-RING ASSEMBLY) INLET/OUTLET WATERBOX PARTITION,CW-2300DF CONDENSER. 3 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.