The Guide,valve Stem, cataloged under National Stock Number 4810-00-549-3525, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Pti Technologies Inc.. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-00-549-3525 |
| Primary Part Number | 41001627 |
| Item Name | Guide,valve Stem |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Pti Technologies Inc. |
| Status | ACTIVE |
| Aa End Chamfer Length | 0.250 INCHES NOMINAL IN |
| Major Diameter Length | 0.050 INCHES NOMINAL IN |
| Bb End Shank Diameter | 0.873 INCHES NOMINAL IN |
| Style Designator | SHOULDERED-GROOVED SHANK |
| Outside Diameter | 1.0420 INCHES NOMINAL IN |
| Groove Quantity | 8 |
| Bb End Chamfer Length | 0.250 INCHES NOMINAL IN |
| Bore Diameter | 0.6500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 41001627 PRIMARY | Pti Technologies Inc. (USA) |
| Reference | Meaning |
|---|---|
| 41001627 | 5/9 Secondary reference U.S. Government activity |
NSN 4810-00-549-3525 is a Guide,valve Stem, manufactured by Pti Technologies Inc., classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-00-549-3525 has 1 manufacturer part number on file: 41001627 (Pti Technologies Inc.).
Key specifications for 41001627: Aa End Chamfer Length: 0.250 INCHES NOMINAL IN; Major Diameter Length: 0.050 INCHES NOMINAL IN; Bb End Shank Diameter: 0.873 INCHES NOMINAL IN; Style Designator: SHOULDERED-GROOVED SHANK. 9 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.