The O-Ring, cataloged under National Stock Number 5331-00-285-9876, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hale Products, Inc.. 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-285-9876 |
| Primary Part Number | 040-1260-00-0 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hale Products, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.094 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU |
| 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 |
|---|---|
| 040-1260-00-0 PRIMARY | Hale Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HN40 | 5/9 Secondary reference Hale Products, Inc. |
| HN39PC109 | 5/9 Secondary reference Hale Products, Inc. |
| 40-3N137 | 3/9 Design control — primary reference Hale Products, Inc. |
| 040-1260-00 | 5/9 Secondary reference Hale Products, Inc. |
| 12P400D | 5/9 Secondary reference Hale Products, Inc. |
| HN43 | 5/9 Secondary reference Hale Products, Inc. |
NSN 5331-00-285-9876 is a O-Ring, manufactured by Hale Products, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-285-9876 has 1 manufacturer part number on file: 040-1260-00-0 (Hale Products, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-065-0811, 5999-01-254-0776. Verify interchangeability with system specifications before substitution.
Key specifications for 040-1260-00-0: Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OR RUBBER POLYESTER URETHANE CLASS AU OR RUBBER POLYETHER URETHANE CLASS EU. 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.