627777

View detailed technical data, stock status, and sourcing information for: 627777
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-531-8831

Item Name Code

29729

Assigment Date

01/01/1963 (63 years ago)

0.380 inches maximum washer outside diameter, 0.310 inches minimum and 0.325 inches maximum overall height, prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class

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
Washer Outside Diameter: 0.380 inches maximum
Overall Height: 0.310 inches minimum and 0.325 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.050 inches minimum
Width Across Flats: 0.305 inches minimum and 0.313 inches maximum
Temp Rating: 1200.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Material: iron alloy 660 overall
Material Document And Classification: ams5735 assn std single material response or ams5737 assn std single material response overall
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: 410,elastic stop nut corp mfr ref 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-691-1838	No Name Available	12/05/1969

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
129FW-1032	Extended Washer Self-Locking Nut
308159	Extended Washer Self-Locking Nut
598565	Extended Washer Self-Locking Nut
627777	Extended Washer Self-Locking Nut
627787	Extended Washer Self-Locking Nut
B00102-3	Extended Washer Self-Locking Nut
H19517-3	Extended Washer Self-Locking Nut
LH9064-3	Extended Washer Self-Locking Nut
SL7092C-1032	Extended Washer Self-Locking Nut
ST1172-09	Extended Washer Self-Locking Nut
ST1183	Extended Washer Self-Locking Nut
ST1183-09	Extended Washer Self-Locking Nut
ST1327-09	Extended Washer Self-Locking Nut
VN4704BA02	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-531-8831?

The FSCG of the NSN 5310-00-531-8831 is 5310

Does the NSN 5310-00-531-8831 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-531-8831 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 5310-00-531-8831 contain precious materials?

Item contains silver.

Does NSN 5310-00-531-8831 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 5310-00-531-8831 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963