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H50737-4 Extended Washer Self-Locking Nut

5310-01-078-9435

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Official Item Classification

Name
Extended Washer Self-Locking Nut
Part Number
H50737-4
(NSN) National Stock Number
5310-01-078-9435
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
29729
(FIIG) Federal Item Identification Guide
A021A0
Date
06/22/1979 (47 years ago)

0.363 inches maximum overall height, 3b thread class, 0.491 inches minimum and 0.532 inches maximum washer outside diameter, right-hand thread direction, prevailing torque all metal design locking feature

Specs & Compatibility

Thread Class

3b

Thread Direction

right-hand

Locking Feature

prevailing torque all metal design

Washer Outside Diameter

0.491 inches minimum and 0.532 inches maximum

Overall Height

0.363 inches maximum

Nut Style

double hexagon

Washer Thickness

0.035 inches minimum

Width Across Flats

0.267 inches minimum and 0.376 inches maximum

Temp Rating

600.0 fahrenheit maximum

Thread Series

unjf

Thread Quantity Per Inch

24

Hardness Rating

48.0 rockwell c maximum

Nominal Thread Size

0.312 inches

Special Features

dyed blue color no. 15526 fed std 595

Material

nickel alloy 718 overall

Material Document And Classification

ams 5662 assn std single material response or ams 5663 assn std single material response overall

Precious Material And Location

threads silver

Precious Material

silver

Surface Treatment

passivate overall except threads

Surface Treatment

silver threads

Surface Treatment Document And Classification

ams2410 assn std single treatment response threads

Surface Treatment Document And Classification

qq-p-35 fed spec single treatment response overall except threads

Regulatory Compliance

Precious Metals Indicator
S

Item contains silver.

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

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

Pseudo Item Name Code

0029729

Related Hardware Products

Part Number Description
642AS0736-4 Extended Washer Self-Locking Nut
77658-524 Extended Washer Self-Locking Nut
H50737-4 Extended Washer Self-Locking Nut
H50737-5 Extended Washer Self-Locking Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-078-9435?
The FSCG of the NSN 5310-01-078-9435 is 5310
Does the NSN 5310-01-078-9435 have a Schedule B code assigned?
Yes, the Schedule B code is 7508900000
Does NSN 5310-01-078-9435 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 5310-01-078-9435 contain precious materials?
Item contains silver.
Does NSN 5310-01-078-9435 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 5310-01-078-9435 was assigned to the Federal Catalog?
It was assigned 47 years ago, on Fri, Jun 22, 1979