The Mirror,missile,guidance Control, cataloged under National Stock Number 1420-01-045-3173, is classified within Federal Supply Class 1420 (Guided Missile Components) of the Guided Missiles group. The manufacturer of record is L-3 Communications Corporation Dba Intergrated Optical Systems-Tinsley Div Integrated Optical Systems - Tinsley. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1420-01-045-3173 |
| Primary Part Number | MM4975 |
| Item Name | Mirror,missile,guidance Control |
| FSC / FSG | 1420 / 14 — Guided Missile Components |
| Manufacturer | L-3 Communications Corporation Dba Intergrated Optical Systems-Tinsley Div Integrated Optical Systems - Tinsley |
| Status | ACTIVE |
| General Characteristics Item Description | BAKE IN VACUUM OVEN 0.4 PSIA MAX AT 405 DEG FOR 4 HRS,SPECULAR REFLECTANCE 96 PERCENT FROM 2 THRU 6 MICROMETERS WAVELENGTH,REFLECTANCE ANGLE OF INCIDENCE FROM 10 THRU 15 DEGREES,SURFACE M SHALL BE 80-20 SCRATCH AND DIG IN A/W MIL-0-13830 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| MM4975 PRIMARY | L-3 Communications Corporation Dba Intergrated Optical Systems-Tinsley Div Integrated Optical Systems - Tinsley (USA) |
| Reference | Meaning |
|---|---|
| 1148199 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 1148199 | 5/9 Secondary reference Bae Systems Information and Electronic Systems Integration I |
| 639AS565 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 1420-01-045-3173 is a Mirror,missile,guidance Control, manufactured by L-3 Communications Corporation Dba Intergrated Optical Systems-Tinsley Div Integrated Optical Systems - Tinsley, classified under FSC 1420, Guided Missile Components. Status: active.
NSN 1420-01-045-3173 has 1 manufacturer part number on file: MM4975 (L-3 Communications Corporation Dba Intergrated Optical Systems-Tinsley Div Integrated Optical Systems - Tinsley).
Key specifications for MM4975: General Characteristics Item Description: BAKE IN VACUUM OVEN 0.4 PSIA MAX AT 405 DEG FOR 4 HRS,SPECULAR REFLECTANCE 96 PERCENT FROM 2 THRU 6 MICROMETERS WAVELENGTH,REFLECTANCE ANGLE OF INCIDENCE FROM 10 THRU 15 DEGREES,SURFACE M SHALL BE 80-20 SCRATCH AND DIG IN A/W MIL-0-13830; End Item Identification: MISSILE MODEL AIM-9L. 1 specification is 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 1420-01-045-3173 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.