The Plunger,quick Release, cataloged under National Stock Number 5340-01-449-9992, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-449-9992 |
| Primary Part Number | SPR-375P |
| Item Name | Plunger,quick Release |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier |
| Status | ACTIVE |
| Overall Diameter | 0.3750 INCHES NOMINAL IN |
| Thread Length | 1.2000 INCHES NOMINAL IN |
| Shape | ROUND |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3750 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 | 5.00000 POUNDS NOMINAL 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 |
|---|---|
| SPR-375P | Reid Supply Company (USA) |
| SPR-375P PRIMARY | Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier (USA) |
| Reference | Meaning |
|---|---|
| SPR-375 | 5/9 Secondary reference Reid Supply Company |
| SPR-375 | 5/9 Secondary reference Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier |
| G1-29-9008-001 | 5/9 Secondary reference Astronics Dme Llc Dba Astronics Dme |
NSN 5340-01-449-9992 is a Plunger,quick Release, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-449-9992 has 2 manufacturer part numbers on file: SPR-375P (Reid Supply Company), SPR-375P (Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier).
Key specifications for SPR-375P: Overall Diameter: 0.3750 INCHES NOMINAL IN; Thread Length: 1.2000 INCHES NOMINAL IN; Shape: ROUND; Overall Length: 1.6800 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.