The Cover,access,guided Missile, cataloged under National Stock Number 1420-01-548-2174, is classified within Federal Supply Class 1420 (Guided Missile Components) of the Guided Missiles group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 7 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 | 1420-01-548-2174 |
| Primary Part Number | 29957-1 |
| Item Name | Cover,access,guided Missile |
| FSC / FSG | 1420 / 14 — Guided Missile Components |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Bolt Circle Diameter | 5.500 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Corner Cut Type | ROUND |
| Material | ALUMINUM ALLOY |
| Hole Diameter | 0.276 INCHES MINIMUM AND 0.284 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 29957-1 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
NSN 1420-01-548-2174 is a Cover,access,guided Missile, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 1420, Guided Missile Components. Status: active.
NSN 1420-01-548-2174 has 1 manufacturer part number on file: 29957-1 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for 29957-1: Mounting Opening Shape Style: UNTHREADED HOLE; Outside Diameter: 6.500 INCHES NOMINAL IN; Bolt Circle Diameter: 5.500 INCHES NOMINAL IN; Peripheral Shape Style: ROUND, MULTI HOLES. 7 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.
NSN 1420-01-548-2174 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.