The Cover,access, cataloged under National Stock Number 2590-01-707-5490, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. The manufacturer of record is C E Niehoff & Co. Government technical data includes 15 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 | 2590-01-707-5490 |
| Primary Part Number | N7603 |
| Item Name | Cover,access |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Manufacturer | C E Niehoff & Co |
| Status | ACTIVE |
| Usage Design | VEHICULAR |
| Mounting Method | SCREW |
| Mounting Opening Shape Style | THREADED HOLE |
| Mounting Hole Diameter | UNABLE TO DECODE |
| Shape | CIRCULAR |
| Outside Diameter | 8.94 INCHES NOMINAL IN |
| Vehicle Identification Designator | M2/M3 |
| Securing Device Type | THREADED FASTENER |
| Inside Diameter | 5.62 INCHES NOMINAL IN |
| Mounting Hole/slot Quantity | 6 |
| Vehicle Design Control Activity | 76761 |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Furnished Items and Quantity | 6 LOCK WASHER N9377. 6 SCREW N9841. 1 COVER PLATE. |
| Hole Diameter | 0.22 INCHES NOMINAL IN |
| Mounting Hole Type | UNABLE TO DECODE |
| 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 |
|---|---|
| N7603 PRIMARY | C E Niehoff & Co (USA) |
NSN 2590-01-707-5490 is a Cover,access, manufactured by C E Niehoff & Co, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
NSN 2590-01-707-5490 has 1 manufacturer part number on file: N7603 (C E Niehoff & Co).
Key specifications for N7603: Usage Design: VEHICULAR; Mounting Method: SCREW; Mounting Opening Shape Style: THREADED HOLE; Mounting Hole Diameter: UNABLE TO DECODE. 15 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.