The Lock,valve Spring Retainer, cataloged under National Stock Number 4310-01-519-4774, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is General Dynamics Land Systems Inc.. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-519-4774 |
| Primary Part Number | 12438323 |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | General Dynamics Land Systems Inc. |
| Status | ACTIVE |
| Minimum Inside Diameter | 0.312 INCHES IN |
| Thread Provision | UNTHREADED |
| Height to Shoulder | 0.917 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN |
| Largest Outside Diameter | 0.684 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN |
| Flange Thickness | 0.125 INCHES NOMINAL IN |
| Largest Inside Diameter | 0.312 INCHES NOMINAL IN |
| Style Designator | TOP COUNTERBORE-TOP OUTER CHAMFER-BOTTOM FLANGE |
| Smallest Outside Diameter | 0.562 INCHES NOMINAL IN |
| Largest Outside Width | 1.501 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 12438323 PRIMARY | General Dynamics Land Systems Inc. (USA) |
NSN 4310-01-519-4774 is a Lock,valve Spring Retainer, manufactured by General Dynamics Land Systems Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-519-4774 has 1 manufacturer part number on file: 12438323 (General Dynamics Land Systems Inc.).
Key specifications for 12438323: Overall Height: 1.042 INCHES MINIMUM AND 1.052 INCHES MAXIMUM IN; Minimum Inside Diameter: 0.312 INCHES IN; Thread Provision: UNTHREADED; Height to Shoulder: 0.917 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN. 11 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.