4T51018-177B

View detailed technical data, stock status, and sourcing information for: 4T51018-177B
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-811-2919

Item Name Code

29785

Assigment Date

03/22/1968 (58 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

qq-a-250/5 fed spec single material response material document and classification, 0.190 inches minimum and 0.196 inches maximum hole diameter, unthreaded hole mounting opening shape style, aluminum alloy 2024 material, threaded fastener securing device type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 0.190 inches minimum and 0.196 inches maximum
Securing Device Type: threaded fastener
Mounting Opening Shape Style: unthreaded hole
Material: aluminum alloy 2024
Material Document And Classification: qq-a-250/5 fed spec single material response

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
4T51018-177B	Access Cover

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5340-00-811-2919?

The FSCG of the NSN 5340-00-811-2919 is 5340

Does NSN 5340-00-811-2919 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 5340-00-811-2919 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-00-811-2919 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-00-811-2919 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Fri, Mar 22, 1968