631-9921-001

View detailed technical data, stock status, and sourcing information for: 631-9921-001
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-025-6952

Item Name Code

04905

Assigment Date

08/08/1976 (49 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.

right-hand thread direction, 2.620 inches nominal fastener length, 2a thread class, 0.310 inches nominal thread length, 0.245 inches minimum and 0.248 inches maximum first shoulder shoulder diameter

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.310 inches nominal
Fastener Length: 2.620 inches nominal
Shoulder Diameter: 0.245 inches minimum and 0.248 inches maximum first shoulder
Shoulder Length: 2.310 inches nominal first shoulder
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Shoulder Shape: round first shoulder
Material: plastic overall
Material Document And Classification: g10,fscm 13499 mfr ref single material response overall
Thread Series Designator: unf

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
631-9921-001	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-025-6952?

The FSCG of the NSN 5306-01-025-6952 is 5306

Does the NSN 5306-01-025-6952 have a Schedule B code assigned?

Yes, the Schedule B code is 3926909987

Does NSN 5306-01-025-6952 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 5306-01-025-6952 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-025-6952 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 5306-01-025-6952 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sun, Aug 8, 1976