The O-Ring, cataloged under National Stock Number 5331-01-221-0678, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cameron Energy Services Corp.. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-221-0678 |
| Primary Part Number | 0001.0039.R |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cameron Energy Services Corp. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | MIL-R-83248,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Elongation Percentage | 125 MAXIMUM |
| Peripheral Diameter | 1.879 INCHES NOMINAL IN |
| Center Hole Diameter | 1.724 INCHES MINIMUM AND 1.754 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 0001.0039.R PRIMARY | Cameron Energy Services Corp. (USA) |
| Reference | Meaning |
|---|---|
| D4-224E005ITEM5 | 5/1 Secondary reference Cameron Energy Services Corp. |
| M83248/1-031 | 4/1 Identification reference U.S. Government activity |
| 01-435-0134-5PC35 | 5/1 Secondary reference Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
NSN 5331-01-221-0678 is a O-Ring, manufactured by Cameron Energy Services Corp., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-221-0678 has 1 manufacturer part number on file: 0001.0039.R (Cameron Energy Services Corp.).
3 possible matches (shared part number, not a government interchangeability claim): 5330-01-251-4734, 5330-01-329-2884, 5331-01-665-5446. Verify interchangeability with system specifications before substitution.
Key specifications for 0001.0039.R: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: MIL-R-83248,CL 1 MIL SPEC SINGLE MATERIAL RESPONSE; Elongation Percentage: 125 MAXIMUM. 7 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.