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5310-00-660-1938

Find complete technical information, availability, and procurement data for: 5310-00-660-1938

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5310-00-660-1938
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-660-1938
Item Name Code
05277
Assigment Date
01/01/1963 (63 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

prevailing torque with nonmetallic insert locking feature, hexagon nut style, 0.360 inches minimum and 0.390 inches maximum nut height, 3b thread class, 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 with nonmetallic insert
Nut Style
hexagon
Nut Height
0.360 inches minimum and 0.390 inches maximum
Width Across Flats
0.489 inches minimum and 0.503 inches maximum
Temp Rating
250.0 fahrenheit nominal
Thread Series
unc
Thread Quantity Per Inch
20
Nominal Thread Size
0.250 inches
Bearing Surface Type
chamfered
Material
steel comp 1212 nut
Material Document And Classification
ams5010 assn std single material response nut
Material Document And Classification
mil-m-20693 comp a type1 mil spec 1st material response or mil-m-20693 comp b type4 and 4a mil spec 2nd material response locking insert
Surface Treatment
zinc overall except insert
Surface Treatment Document And Classification
qq-z-325,ty 1,cl 3 fed spec single treatment response overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-00-480-8448 No Name Available 02/01/1983
5310-01-264-9403 No Name Available 05/01/1996

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
131-461 Hexagon Self-Locking Nut
21NU-040 Hexagon Self-Locking Nut
21NU040 Hexagon Self-Locking Nut
21U040 Hexagon Self-Locking Nut
29NU-040 Hexagon Self-Locking Nut
52-46-63 Hexagon Self-Locking Nut
9072391 Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-660-1938?
The FSCG of the NSN 5310-00-660-1938 is 5310
Does the NSN 5310-00-660-1938 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-660-1938 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 5310-00-660-1938 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-660-1938 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 5310-00-660-1938 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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