542740 — KEY,MACHINE

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

542740: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: STEEL COMP W110 OVERALL, overall_width: 0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN, overall_height: 0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN, overall_length: 2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN, hardness_rating: 98.0 ROCKWELL B MAXIMUM OVERALL, style_designator: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-054-2740, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

542740

NSN: 5315-00-054-2740
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 21450 — ARMY WEAPONS COMMAND ATTN AMSWE-REE-S (USA)

SPECIFICATIONS

material	STEEL COMP W110 OVERALL
overall_width	0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
overall_height	0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
overall_length	2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
hardness_rating	98.0 ROCKWELL B MAXIMUM OVERALL
style_designator	PLAIN
starting_edge_shape	ROUND
starting_edge_radius	0.188 INCHES NOMINAL IN
material_document_and_classification	QQ-S-0077 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5315-00-054-2740

COMPONENT DIAGRAM

KEY FEATURES

•

HARDNESS RATING: 98.0 ROCKWELL B MAXIMUM OVERALL

•

STARTING EDGE SHAPE: ROUND

•

STYLE DESIGNATOR: PLAIN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-0077 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

STARTING EDGE RADIUS: 0.188 INCHES NOMINAL IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
HARDNESS RATING	98.0 ROCKWELL B MAXIMUM OVERALL
STARTING EDGE SHAPE	ROUND
STYLE DESIGNATOR	PLAIN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-0077 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH	2.120 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN
OVERALL WIDTH	0.3745 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
STARTING EDGE RADIUS	0.188 INCHES NOMINAL IN
MATERIAL	STEEL COMP W110 OVERALL

SUBSTITUTES & CROSS-REFERENCES 1

11A9X130Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 542740?

542740 is a KEY,MACHINE.

What parts can replace 542740?

There is 1 known substitute for 542740: 11A9X130. Substitute compatibility should be verified for your specific system.

What is the NSN for 542740?

542740 is cataloged in the U.S. Government catalog under NSN 5315-00-054-2740. This indicates validated use in U.S. government and defense supply chains.

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