1240-21-878-7251

Optical Element Retaining Ring

1240218787251 218787251 303324 303324 REV 05 C55-11.01-178

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see RETAINER, OPTICAL ELEMENT. Excludes CELL, OPTICAL ELEMENT; NUT, PLAIN KNURLED; NUT, PLAIN ROUND; and RING, RETAINING. View more Optical Element Retaining Ring

Managed by Canada

NSN Created on 14 Mar 1978

Data Last Changed
January 2023

NATO Update Count
1

NATO Data Quality

1240-21-878-7251 RING,RETAINING,OPTICAL ELEMENT 1240218787251 218787251 1/1 — NSN 1240-21-878-7251 (Generic Image) 1/1

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1240-21-878-7251 Optical Element Retaining Ring 1240218787251

303324 303324 REV 05 C55-11.01-178 A cylindrical item having an internally flanged diameter designed
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1240-21-878-7251 is a Optical Element Retaining Ring

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Approved Sources 1240-21-878-7251

Part Number
Manufacturer
Status
303324: 35907 - Department Of National Defence, (Active); Primary Buy; RNCC 3 RNVC 2 DAC 5
303324 REV 05: 36126 - Raytheon Canada Limited (Active); Primary Buy; RNCC 3 RNVC 2 DAC 4
C55-11.01-178: 36126 - Raytheon Canada Limited (Active); Canceled/Obsolete; RNCC 5 RNVC 9 DAC 5

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