The Spacer,optical Element, cataloged under National Stock Number 6650-01-271-4893, is classified within Federal Supply Class 6650 (Optical Instruments, Test Equipment, Components and Accessories) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6650-01-271-4893 |
| Primary Part Number | 13076599-009 |
| Item Name | Spacer,optical Element |
| FSC / FSG | 6650 / 66 — Optical Instruments, Test Equipment, Components and Accessories |
| Manufacturer | Lockheed Martin Corporation |
| Status | ACTIVE |
| Serration Width | 0.307 INCHES NOMINAL IN |
| Body Outside Diameter | 4.186 INCHES MAXIMUM IN |
| End Internal Bevel Angle | 0.0 DEGREES NOMINAL |
| Style Designator | SPACER |
| Straight Bore Inside Diameter | 4.050 INCHES NOMINAL IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 13076599-009 | Arwood Machine Corporation Dba Amc (USA) |
| 13076599-009 PRIMARY | Lockheed Martin Corporation (USA) |
| 13076599-009 | Tam Precision Machining Inc (USA) |
| 13076599-009 | Computer Reliance (USA) |
| Reference | Meaning |
|---|---|
| 13076599-009 | 5/9 Secondary reference Program Manager Advanced Attack Helicopter Barcom Amcpm-Aah |
NSN 6650-01-271-4893 is a Spacer,optical Element, manufactured by Lockheed Martin Corporation, classified under FSC 6650, Optical Instruments, Test Equipment, Components and Accessories. Status: active.
NSN 6650-01-271-4893 has 4 manufacturer part numbers on file: 13076599-009 (Arwood Machine Corporation Dba Amc), 13076599-009 (Lockheed Martin Corporation), 13076599-009 (Tam Precision Machining Inc), 13076599-009 (Computer Reliance).
Key specifications for 13076599-009: Serration Width: 0.307 INCHES NOMINAL IN; Body Outside Diameter: 4.186 INCHES MAXIMUM IN; End Internal Bevel Angle: 0.0 DEGREES NOMINAL; Style Designator: SPACER. 6 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 6650-01-271-4893 has DEMIL Code B. 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.