BEL1400-280

View detailed technical data, stock status, and sourcing information for: BEL1400-280
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-011-0749

Item Name Code

15938

Assigment Date

10/12/1975 (50 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

45.0 rockwell c minimum and 48.0 rockwell c maximum hardness rating, 0.035 inches minimum and 0.055 inches maximum overall height, 0.431 inches minimum and 0.443 inches maximum outside diameter, 0.018 inches minimum and 0.022 inches maximum material thickness, 0.248 inches minimum and 0.258 inches maximum hole diameter

Product Characteristics

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

Hole Diameter: 0.248 inches minimum and 0.258 inches maximum
Outside Diameter: 0.431 inches minimum and 0.443 inches maximum
Overall Height: 0.035 inches minimum and 0.055 inches maximum
Material Thickness: 0.018 inches minimum and 0.022 inches maximum
Hardness Rating: 45.0 rockwell c minimum and 48.0 rockwell c maximum
Material: steel comp 1050 overall
Material Document And Classification: qq-s-700 fed spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type 11,class 1 fed spec single treatment response overall
Style Designator: spring tension

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
10674091	Spring Tension Washer
BEL1400-280	Spring Tension Washer

FAQs

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

What is the FSCG of the NSN 5310-01-011-0749?

The FSCG of the NSN 5310-01-011-0749 is 5310

Does the NSN 5310-01-011-0749 have a Schedule B code assigned?

Yes, the Schedule B code is 7318210000

Does NSN 5310-01-011-0749 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 5310-01-011-0749 contain precious materials?

Precious metal content is unknown

Does NSN 5310-01-011-0749 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 5310-01-011-0749 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Oct 12, 1975