The Guide,valve Stem, cataloged under National Stock Number 4820-01-202-9370, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Niantic Tool, Inc. Dba Niantic Tool Co. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Niantic Tool, Inc. Dba Niantic Tool Co (CAGE 0B5H6); Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (CAGE 8FGX3) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-202-9370 |
| Primary Part Number | B2428 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Niantic Tool, Inc. Dba Niantic Tool Co |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| B2428 PRIMARY | Niantic Tool, Inc. Dba Niantic Tool Co (USA) |
| 300125 PRIMARY | Niantic Tool, Inc. Dba Niantic Tool Co (USA) |
| 365171 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| F-8473 ITEM 3 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| F-8473 ITEM 3 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| F-8473 ITEM 3 | 5/9 Secondary reference U.S. Government activity |
| 365171 | 5/9 Secondary reference U.S. Government activity |
| 365171 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 365171 | 5/9 Secondary reference Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand |
| F-8473 ITEM 3 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
NSN 4820-01-202-9370 is a Guide,valve Stem, manufactured by Niantic Tool, Inc. Dba Niantic Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-202-9370 has 4 manufacturer part numbers on file: B2428 (Niantic Tool, Inc. Dba Niantic Tool Co), 300125 (Niantic Tool, Inc. Dba Niantic Tool Co), 365171 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), F-8473 ITEM 3 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
3 possible matches (shared part number, not a government interchangeability claim): 6515-01-515-5405, 6150-01-518-2604, 3445-01-658-3867. Verify interchangeability with system specifications before substitution.
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.