The Cup,compression, cataloged under National Stock Number 5340-00-376-8902, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-376-8902 |
| Primary Part Number | D25656 |
| Item Name | Cup,compression |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Feather Edge Angle | 45.0 DEGREES NOMINAL |
| Material Document and Classification | KK-L-181,GRADE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Center Hole Diameter | 2.875 INCHES NOMINAL IN |
| Base Material Thickness | 0.094 INCHES NOMINAL IN |
| Material | LEATHER CATTLEHIDE OVERALL |
| Recess Inside Diameter | 2.563 INCHES NOMINAL IN |
| 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 |
| Part Number | Manufacturer |
|---|---|
| D25656 PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| D25656 | 5/9 Secondary reference Hammel Dahl Inc |
| D25656 | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 5340-00-376-8902 is a Cup,compression, manufactured by Hunt Valve Company, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-376-8902 has 1 manufacturer part number on file: D25656 (Hunt Valve Company, Inc.).
Key specifications for D25656: Feather Edge Angle: 45.0 DEGREES NOMINAL; Material Document and Classification: KK-L-181,GRADE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 0.313 INCHES NOMINAL IN; Center Hole Diameter: 2.875 INCHES NOMINAL IN. 6 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.