The Lock,valve Spring Retainer, cataloged under National Stock Number 4310-01-348-1859, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-348-1859 |
| Primary Part Number | PLC-10678 ITEM 10CP |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | COPPER ALLOY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| PLC-10678 ITEM 10CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 033910AGCP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| PLC-10678 ITEM 10 | 3/1 Design control — primary reference U.S. Government activity |
| 033910AG | 5/1 Secondary reference U.S. Government activity |
| 33910GAC | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4310-01-348-1859 is a Lock,valve Spring Retainer, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-348-1859 has 2 manufacturer part numbers on file: PLC-10678 ITEM 10CP (Naval Inventory Control Point Mechanicsburg), 033910AGCP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-504-0576. Verify interchangeability with system specifications before substitution.
Key specifications for PLC-10678 ITEM 10CP: Criticality Code Justification: ZZZY; Casehardening Indicator: NOT CASEHARDENED; Material: COPPER ALLOY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 4 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.