B4525-320-49

View detailed technical data, stock status, and sourcing information for: B4525-320-49
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-889-2549

Item Name Code

05277

Assigment Date

01/01/1960 (66 years ago)

prevailing torque all metal design locking feature, 3b thread class, soluble lubricant lubrication, hexagon nut style, right-hand thread direction

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.219 inches minimum and 0.250 inches maximum
Width Across Flats: 0.336 inches minimum and 0.345 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.164 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-576-2686	No Name Available	05/17/1988

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
16287-3	Hexagon Self-Locking Nut
200-SA13	Hexagon Self-Locking Nut
21FA832	Hexagon Self-Locking Nut
2300753	Hexagon Self-Locking Nut
27FH-832	Hexagon Self-Locking Nut
5310008892549	Hexagon Self-Locking Nut
5310PL1805843	Hexagon Self-Locking Nut
B4525-320-49	Hexagon Self-Locking Nut
F1801-82	Hexagon Self-Locking Nut
H55-08CW	Hexagon Self-Locking Nut
MS21045-08	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-889-2549?

The FSCG of the NSN 5310-00-889-2549 is 5310

Does the NSN 5310-00-889-2549 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-889-2549 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 5310-00-889-2549 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-889-2549 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 5310-00-889-2549 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960