The Cup,compression, cataloged under National Stock Number 5340-00-491-7244, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-491-7244 |
| Item Name | Cup,compression |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Status | ACTIVE |
| Overall Diameter | 2.500 INCHES NOMINAL IN |
| Center Hole Diameter | 1.432 INCHES MINIMUM AND 1.442 INCHES MAXIMUM IN |
| Base Material Thickness | 0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Reference | Meaning |
|---|---|
| 310-2 1-2 | 3/9 Design control — primary reference Halogen Insulator and Seal Corp |
| 2580202 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 310 2 1 2 | 5/9 Secondary reference Halogen Insulator and Seal Corp |
NSN 5340-00-491-7244 is a Cup,compression, classified under FSC 5340, Hardware, Commercial. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 9905-01-045-5850, 5895-01-628-0383. Verify interchangeability with system specifications before substitution.
Key specifications for 5340-00-491-7244: Overall Diameter: 2.500 INCHES NOMINAL IN; Overall Length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Center Hole Diameter: 1.432 INCHES MINIMUM AND 1.442 INCHES MAXIMUM IN; Base Material Thickness: 0.121 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN. 4 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.