LD137-0029-1020

View detailed technical data, stock status, and sourcing information for: LD137-0029-1020
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Federal Supply Group

Bearings

Federal Supply Classification

3120 Unmounted Plain Bearings

National Stock Number

3120-01-245-7256

Item Name Code

13206

Assigment Date

12/03/1986 (39 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).

steel comp 4130 or steel comp 4135 overall material, square all corners corner shape, 0.6100 inches minimum and 0.6150 inches maximum overall length, 0.7495 inches minimum and 0.7505 inches maximum body inside diameter, 0.8760 inches minimum and 0.8770 inches maximum body outside diameter

Product Characteristics

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

Overall Length: 0.6100 inches minimum and 0.6150 inches maximum
Body Outside Diameter: 0.8760 inches minimum and 0.8770 inches maximum
Body Inside Diameter: 0.7495 inches minimum and 0.7505 inches maximum
Corner Shape: square all corners
Material: steel comp 4130 or steel comp 4135 overall
Material Document And Classification: mil-t-6736,cond n mil spec 1st material response or mil-t-6736 mil spec 2nd material response overall
Surface Treatment: cadmium and chromate left end surface of body
Surface Treatment: cadmium and chromate outside diameter surface of body
Surface Treatment: cadmium and chromate right end surface of body
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec all treatment responses left end surface of body
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec all treatment responses outside diameter surface of body
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec all treatment responses right end surface of body
Style Designator: solid, plain, no outside flanges
Specification/Standard Data: 43999-ld137-0029 manufacturers standard

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
4B19S12-020	Sleeve Bushing
LD137-0029-1020	Sleeve Bushing

FAQs

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

What is the FSCG of the NSN 3120-01-245-7256?

The FSCG of the NSN 3120-01-245-7256 is 3120

Does the NSN 3120-01-245-7256 have a Schedule B code assigned?

Yes, the Schedule B code is 8482997060

Does NSN 3120-01-245-7256 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 3120-01-245-7256 contain precious materials?

Item does not contain precious metal.

Does NSN 3120-01-245-7256 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 3120-01-245-7256 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Dec 3, 1986