The Seat,valve, cataloged under National Stock Number 4820-01-502-6865, 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 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-502-6865 |
| Primary Part Number | B14532.001.102VM |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Thread Length | 0.062 INCHES NOMINAL FIRST THREADED PORTION IN |
| Thread Length | 0.380 INCHES NOMINAL SECOND THREADED PORTION IN |
| Taper Minor Diameter | 0.435 INCHES NOMINAL IN |
| Style Designator | DOUBLE FLANGED |
| Material Document and Classification | ASTM A479 TY 316 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Taper Major Diameter | 0.570 INCHES NOMINAL IN |
| Body Inside Diameter | 0.435 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Nominal Thread Size | 0.687 INCHES FIRST THREADED PORTION IN |
| Nominal Thread Size | 1.125 INCHES SECOND THREADED PORTION IN |
| Seat Radius | 0.217 INCHES NOMINAL IN |
| Thread Class | 2A SECOND THREADED PORTION A |
| Thread Class | 2A FIRST THREADED PORTION A |
| Thread Quantity Per Inch | 16 FIRST THREADED PORTION |
| Material | STEEL COMP 316 SEAT |
| Seat Angle in Deg | 30.000 MINIMUM AND 60.000 MAXIMUM |
| Thread Series Designator | UNEF SECOND THREADED PORTION |
| Thread Series Designator | UN FIRST THREADED PORTION |
| Reference Number Differentiating Characteristics | ASDIFFERENTIATED BY: PART REQUIRES SPECIAL MATERIAL CONTROL AND QUALITY ASSURANCE, WHICH SUPPORT THE NON-MAGNETIC SIGNATURE OF MINESWEEPERS. |
| Seating Surface Shape | ANGULAR |
| 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 |
|---|---|
| B14532.001.102VM | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| B14532.001.102 | 3/1 Design control — primary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| MH105 FIND NO.4 | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| MH105 | D/9 Drawing number reference only Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 4820-01-502-6865 is a Seat,valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-502-6865 has 1 manufacturer part number on file: B14532.001.102VM (Naval Inventory Control Point Mechanicsburg).
Key specifications for B14532.001.102VM: Overall Height: 1.250 INCHES NOMINAL IN; Thread Length: 0.062 INCHES NOMINAL FIRST THREADED PORTION IN; Thread Length: 0.380 INCHES NOMINAL SECOND THREADED PORTION IN; Taper Minor Diameter: 0.435 INCHES NOMINAL IN. 19 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.