21-291 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited

Legrand · MRO · MRO_GENERAL

PRODUCT OVERVIEW

21-291: TRANSFORMER,AUDIO FREQUENCY.

Mechanical gaming keyboard with quick responding GXT-White switches and full LED backlight - Quick responding GXT-White switches that last up to 50 million keystrokes - Dedicated Gaming mode for disabling the windows key and activating macro keys - Full LED backlight with enhanced per-key illumination - N-key rollover anti-ghosting. - 1000hz polling rate and 5 ms response time - On-board memory for programming 4 macro keys This part is cataloged in the U.S. Government catalog under NSN 5110-00-045-6211, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS

MRO→ MRO_GENERAL→ 21-291

NSN: 5110-00-045-6211
NIINs: 000456211, 005426090, 006261795, 007252701, 012309933, 012636520
FSC: 5110 — Hand Tools, Edged, Nonpowered
CAGE: 1CV05 — THE STANLEY WORKS DBA STANLEY PROTO (USA)

SPECIFICATIONS

inside_diameter	2.500 INCHES NOMINAL IN
special_features	TWO PART PETRI DISH; ONE PART CONTAINS TRYPTICASE SOY AGAR WITH 5 PERCENT SHEEP BLOOD; OTHER PART CONTAINS MACCONKEY AGAR; PRIMARY CONTAINER TYPE:PETRI DISH
style_designator	TWO BEND
features_provided	ENLARGED ENDS
end_item_identification	NAVISTAR S SERIES TRUCKS MODEL 1626,1654,1723,1724,1734,1754,1823,1824,1853,1824-4X4,1854,1954,1925,1955,1954-6X6,1955,2125,2155,F2125,F1954,F1924-6X6,1753
total_primary_container_quantity	100
part_name_assigned_by_controlling_agency	CULTURE MEDIA SOYBEAN CASEIN DIGEST BLOOD AGAR&MACCONKEY AGAR100
NSN	5110-00-045-6211

COMPONENT DIAGRAM

KEY FEATURES

•

GENERAL CHARACTERISTICS ITEM DESCRIPTION: ROUND; 5/8 IN. DIA X 9-15/16 IN. LG; REGULAR CUT; BLACK FINISH IN

TECHNICAL CHARACTERISTICS

GENERAL CHARACTERISTICS ITEM DESCRIPTION	ROUND; 5/8 IN. DIA X 9-15/16 IN. LG; REGULAR CUT; BLACK FINISH IN
END ITEM IDENTIFICATION	STANLEY NO. 21-297 FILE

SUBSTITUTES & CROSS-REFERENCES 1

297BCReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 21-291?

21-291 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Legrand. It is classified as a MRO (MRO_GENERAL).

What parts can replace 21-291?

There is 1 known substitute for 21-291: 297BC. Substitute compatibility should be verified for your specific system.

What is the NSN for 21-291?

21-291 is cataloged in the U.S. Government catalog under NSN 5110-00-045-6211. This indicates validated use in U.S. government and defense supply chains.

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21-291 — TRANSFORMER,AUDIO FREQUENCY

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