The Guide,valve Stem, cataloged under National Stock Number 4820-01-149-7867, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-149-7867 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Major Diameter Length | 0.303 INCHES NOMINAL IN |
| Bb End Shank Diameter | 1.996 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Bore Counterbore | NOT INCLUDED |
| Outside Diameter | 1.495 INCHES NOMINAL IN |
| Bore Diameter | 1.7500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Bore Countersink | NOT INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| A48547MBD | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| D49275 | D/9 Drawing number reference only Hunt Valve Company Inc Dba Union Flonetics |
| A48547MBD | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 4820-01-149-7867 is a Guide,valve Stem, classified under FSC 4820, Valves, Nonpowered. Status: active.
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-150-0454, 3040-01-150-4928, 3040-01-151-6337. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-149-7867: Major Diameter Length: 0.303 INCHES NOMINAL IN; Bb End Shank Diameter: 1.996 INCHES NOMINAL IN; Style Designator: PLAIN FLANGED; Overall Length: 1.500 INCHES NOMINAL IN. 8 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.