The Guide,valve Stem, cataloged under National Stock Number 4820-01-109-1759, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-109-1759 |
| Primary Part Number | 11628825 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Aa End Chamfer Angle in Deg | 45.0 |
| Aa End Chamfer Length | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Major Diameter Length | 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Bb End Shank Diameter | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Outside Diameter | 0.660 INCHES MINIMUM AND 0.680 INCHES MAXIMUM IN |
| Bb End Chamfer Length | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| Bb End Chamfer Angle in Deg | 45.0 |
| Test Data Document | 19207-11628825 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Bore Diameter | 0.1850 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM IN |
| Material | STEEL |
| Shoulder First Fillet Radius | 0.020 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 11628825 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4820-01-109-1759 is a Guide,valve Stem, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-109-1759 has 1 manufacturer part number on file: 11628825 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11628825: Aa End Chamfer Angle in Deg: 45.0; Aa End Chamfer Length: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Major Diameter Length: 0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Bb End Shank Diameter: 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN. 12 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.