The Plunger,quick Release, cataloged under National Stock Number 5340-01-559-8825, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares 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 | 5340-01-559-8825 |
| Primary Part Number | 8500A12 |
| Item Name | Plunger,quick Release |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Overall Diameter | 0.375 INCHES NOMINAL IN |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Shape | ROUND |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| End Pressure Rating | 0.750 POUNDS MINIMUM AND 3.000 POUNDS MAXIMUM LBS |
| 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 |
|---|---|
| 8500A12 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| 8500A29 | Mcmaster-Carr Supply Company (USA) |
| 001-000217-000 PRIMARY | Insitu, Inc. (USA) |
NSN 5340-01-559-8825 is a Plunger,quick Release, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-559-8825 has 3 manufacturer part numbers on file: 8500A12 (Mcmaster-Carr Supply Company), 8500A29 (Mcmaster-Carr Supply Company), 001-000217-000 (Insitu, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-580-4498. Verify interchangeability with system specifications before substitution.
Key specifications for 8500A12: Overall Diameter: 0.375 INCHES NOMINAL IN; Thread Length: 0.375 INCHES NOMINAL IN; Shape: ROUND; Overall Length: 1.100 INCHES NOMINAL IN. 10 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.