5305-01-660-8879

Find complete technical information, availability, and procurement data for: 5305-01-660-8879
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-660-8879

Item Name Code

29294

Assigment Date

02/08/2017 (9 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.

3a thread class, 0.998 inches minimum and 1.128 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 0.594 inches maximum thread length

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.594 inches maximum
Fastener Length: 0.998 inches minimum and 1.128 inches maximum
Head Style: flat countersunk
Head Diameter: 0.464 inches minimum and 0.507 inches maximum
Grip Diameter: 0.264 inches minimum and 0.265 inches maximum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: b1-bacft
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.678 inches minimum and 0.698 inches maximum
Thread Quantity Per Inch: 28
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: iron alloy 660 overall
Surface Treatment: passivate overall
Thread Series Designator: unjf

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
NAS1580C4R11X	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-660-8879?

The FSCG of the NSN 5305-01-660-8879 is 5305

Does the NSN 5305-01-660-8879 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-660-8879 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 5305-01-660-8879 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-660-8879 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 5305-01-660-8879 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Wed, Feb 8, 2017