The Window,inspection, cataloged under National Stock Number 4320-01-435-9257, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-435-9257 |
| Item Name | Window,inspection |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Overall Diameter | 0.500 INCHES NOMINAL IN |
| General Characteristics Item Description | GLASS IS POLISHED; THICKNESS IS 0.250IN.; ONE SIDE HAS A 0.03X45" CHAMFER IN |
| 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 |
|---|---|
| 1054W-5 | D/9 Drawing number reference only Separation & Recovery Systems Inc |
| 831195 | 3/9 Design control — primary reference Separation & Recovery Systems Inc |
| 1054W-5 ITEM 21 | 5/9 Secondary reference Separation & Recovery Systems Inc |
| 831195 | C/1 Advisory reference — outside the item-of-supply concept Compass Water Solutions, Inc |
| 1054W-5 ITEM 21 | C/1 Advisory reference — outside the item-of-supply concept Compass Water Solutions, Inc |
NSN 4320-01-435-9257 is a Window,inspection, classified under FSC 4320, Power and Hand Pumps. Status: active.
Key specifications for 4320-01-435-9257: Overall Diameter: 0.500 INCHES NOMINAL IN; General Characteristics Item Description: GLASS IS POLISHED; THICKNESS IS 0.250IN.; ONE SIDE HAS A 0.03X45" CHAMFER IN; Special Features: ITEM IS A SIDE WINDOW ON AN SRS SEPARATION AND RECOVERY SYSTEM; Part Name Assigned by Controlling Agency: SIDE WINDOW. 2 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.