The Guide,valve Stem, cataloged under National Stock Number 4820-01-418-0878, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-418-0878 |
| Primary Part Number | V3D10254 ITEM 16CP |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | AMS 5643 ASSN STD 1ST MATERIAL RESPONSE |
| Material | STEEL COMP 630 |
| 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 |
|---|---|
| V3D10254 ITEM 16CP | Naval Inventory Control Point Mechanicsburg (USA) |
| V2C12444-4MFCP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| V2C12444-4MFCP | 3/1 Design control — primary reference U.S. Government activity |
| V3D10254 ITEM 16 | 5/1 Secondary reference U.S. Government activity |
| V2C12444-4MF | 5/1 Secondary reference U.S. Government activity |
| V3D10254 ITEM 16CP | 5/1 Secondary reference U.S. Government activity |
NSN 4820-01-418-0878 is a Guide,valve Stem, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-418-0878 has 2 manufacturer part numbers on file: V3D10254 ITEM 16CP (Naval Inventory Control Point Mechanicsburg), V2C12444-4MFCP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 4810-01-549-9271. Verify interchangeability with system specifications before substitution.
Key specifications for V3D10254 ITEM 16CP: Criticality Code Justification: ZZZY; Material Document and Classification: AMS 5643 ASSN STD 1ST MATERIAL RESPONSE; Material: STEEL COMP 630; 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.