6503-77 ITEM 25

View detailed technical data, stock status, and sourcing information for: 6503-77 ITEM 25
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-568-0756

Item Name Code

05277

Assigment Date

10/20/2008 (17 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

steel corrosion resisting overall material, material controlled iaw navsea 0948-lp-045-7010 material control standard for level 1 items. critical item for safety and sutvival of deep submergence research and rescur vehicels as differentiated by special test features. reference number differentiating characteristics, nut, two inches -4-1/2 unc-2b, cres. special features, zzzy criticality code justification

Product Characteristics

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

Criticality Code Justification: zzzy
Special Features: nut, two inches -4-1/2 unc-2b, cres.
Material: steel corrosion resisting overall
Reference Number Differentiating Characteristics: material controlled iaw navsea 0948-lp-045-7010 material control standard for level 1 items. critical item for safety and sutvival of deep submergence research and rescur vehicels as differentiated by special test features.

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
501-4457016 ITEM NO 25	Hexagon Self-Locking Nut
501-4457016 ITEM NO 25L1	Hexagon Self-Locking Nut
501-4457023 ITEM NO 25	Hexagon Self-Locking Nut
501-4457023 ITEM NO 25L1	Hexagon Self-Locking Nut
501-4457023 MOD PER ER 38908	Hexagon Self-Locking Nut
501-4457023 MOD PER ER 38908L1	Hexagon Self-Locking Nut
6503-77 ITEM 25	Hexagon Self-Locking Nut
6503-77 ITEM NO 25L1	Hexagon Self-Locking Nut
6503-86 ITEM NO 25	Hexagon Self-Locking Nut
6503-86 ITEM NO 25L1	Hexagon Self-Locking Nut
MOD 4457023-25 SPEC ER 38908	Hexagon Self-Locking Nut
MOD 4457023-25 SPEC ER 38908L1	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-568-0756?

The FSCG of the NSN 5310-01-568-0756 is 5310

Does the NSN 5310-01-568-0756 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-568-0756 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 5310-01-568-0756 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-568-0756 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 5310-01-568-0756 was assigned to the Federal Catalog?

It was assigned 17 years ago, on Mon, Oct 20, 2008